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X-ray diffraction is one of the most common and efficient ways to measure a superlattice structure. This dissertation displays the detail results for characterization of Ge〓Si〓/Si superlattices by x-ray diffraction (including x-ray small angle diffraction and double crystal diffraction). It was found, when the growth temperature is lower, the intensities of xray small angle diffraction peaks are modulated by a periodical function, which indicates that both sets of interfaces of the superlattice is highly flat; when the growth temperature is higher, the diffraction peak intensities are simply decay with the increase of diffraction vector, which indicates that one set of interfaces is highly flat but another is not; when the growth temperature is very high, the diffraction peaks are reduced more rapidly, which indicates that both sets of interfaces are not ideal.

本文详细介绍了用X-射线衍射（包括X-射线小角衍射和双晶衍射）方法对Ge〓Si〓/Si超晶格结构特性测试的结果，尤其是发现，当Ge〓Si〓/Si超晶格的生长温度较低时，X-射线小角衍射谱峰的强度随着衍射波矢的增加而周期性调制，表明超晶格的两套界面都十分平整；当生长温度较高时，Ge〓Si〓Si超晶格的X-射线小角衍射谱峰的强度随着衍射波矢呈简单的衰减变化，对应于超晶格内有一套界面不平整的情况；当生长温度进一步提高时，X-射线小角衍射峰明显减少，表明超晶格内两套界面都不理想。

His irony sometimes is humorous but sharp, when expressing various disgusting manners of the life in the small town, this performance is obvious; sometimes his irony is truly emotional: Babbitt is funny as a typical model image, but when his pursuit of freedom is destroyed by the cruel actuality, the depiction of those details are sadly; In " Arrowsmith ", when revealing the corrupt phenomenon consisting in American medical science field , his irony becomes gloomy and serious.

他的讽刺有时候是幽默而犀利的，当表现小镇生活的种种丑态时，这一点表现得尤为明显；有时候又是真实感人的，巴比特虽然被描化成滑稽可笑的中产者的典型形象，但当他追求个性自由的一点微弱的呼声被无情的现实吞没时，那些潦倒境遇的描写，却于滑稽中透出无限辛酸的味道；在《阿罗史密斯》中，当揭露美国医学界尔虞我诈、沽名钓誉的腐败现象时，这种讽刺又变得阴郁而严肃。

The American smiles tolerantly over the absence of central heating in most English homes when he is himself comfortably seated in his armchair in his centrally heated house in Chicago; the English man reads abut the sanitary arrangements in a certain tropical country, and the inhabitants of the latter read about London fogs, and each side manages to be detached and broad-minded.

在芝加哥，当美国人舒服地坐在安乐椅上时，他对在多数英国人家庭里没有中央供暖设备便会露出宽容的微笑。当英国人读到有关某些热带国家的卫生设施情况时，同样，当那些热带国家的居民读到有关伦敦大雾的情况时，他们各自都会比较超脱，比较宽容的。

Calculating results show that variation of the propellant inlet pressure makes little impact on engine performance parameters, and the engine will transit to a new stable state. The parameter transition curves are smooth. When the engine thrust is adjusted in a small range within a short period, the parameter transition curves are also reposeful. But when the adjusting range becomes large, the parameter transition curves will fluctuate acutely. Thus, when large range adjusting is required, the time of adjusting should be lengthened or the adjusting should be divided into adequate steps.

计算结果表明，当发动机在某一个稳定工况工作时，发动机入口推进剂压强的变化对发动机性能参数的影响不大，发动机的参数都能比较平稳的过渡到一个新的稳定工况；当发动机在短时间内进行小范围的推力调节时，发动机参数的过渡过程的曲线也比较平稳，但是当在短时间内进行大范围推力调节时，参数的过渡过程的曲线振动比较剧烈，因此应当在进行大范围推力调节时，应当对调节时间进行适当延长，或者分级进行推力调节。

When things go wrong as they sometimes will, When the road you're trudging seems all uphill, When funds are low and the debts are high, And you want to smile, but have to sigh, When care is pressing you down a bit-- Rest if you must, but don't you quit. Life is queer with its twists and turns, As every one of us sometimes learns; And many a fellow turns about When he might have won, had he stuck it out. Don't give up though the pace seems slow-- You may succeed with another blow. Often the goal is nearer than It seems to a faint and faltering man; Often the struggler has given up When he might have captured the victor's cup; And he learned too late when the night came down, How close he was to the golden crown. Success is failure turned inside out-- The silver tint of the clouds of doubt, And you never can tell how close you are, It may be near when it seems afar; So stick to the fight when you're hardest hit; It's when things seem worst that you mustn't quit .

当天有不测风云发生当你脚下的路变得崎岖当你囊中羞涩却又债台高筑你想要微笑，却不得不叹息当烦恼向你侵袭而来你有必要休息，但绝对不要放弃生命因波折和坎坷而有特色我们每个人有时候都懂得许多人茫然四顾如果他坚持到底，他会成功当事情似乎停滞不前也请不要放弃只要稍加努力你也许就会成功成功的日子比一个脆弱的人想到的更接近奋斗者经常在离成功只有一步之遥时轻易选择了放弃当夜幕降临时他会意识到他离成功是多么接近可是，已经太迟成功是失败的另一种形式是重重疑云上的银色光辉你从不知道你是多么接近它它也许就在眼前却看似遥不可及所以，在最困难的时刻也要坚持奋斗越是困难，越不能放弃！

Foods was very different with china,all foods was acetous,they often mixed mice and dish together,used right hand take food to mouth.their left hand never touch food,someone told me left hand would used by relieve nature.if you shake hands left hand was discourteously.i made myself adapt their bite and sup harder.but when I look dr xuqing eat dish,I could't bursting to laugh,because dish like any yellow paste..it seemd my chin be slim when i looked into the mirror.i think I should be more slim when I come back.i often dreamed to eating meat,when I awoken,I am very sad for no meat can eat.dr fengqi would come to marduri tomorrow,I phone to her I need a pure meat,dr xuqing need chocolate,she laugh us.she would think I am a boss like the film jiafangyifang by fengxiaogang directd.if one chicken in my prensence,I should let it clear fastly.

我正在艰难的适应着他们的饮食。当我看xuqing医生时吃饭时，我笑不出来了，因为盘子里的菜是黄色的糊状的东西（PS：感到恶心吧，印度菜就那样，以糊状的为主）。当我照镜子的时候，我发现我又变瘦了。待到归国时，我会更瘦地！我经常夜里做梦在吃肉，当我醒了，发现是梦时，感觉老失落了（PS：印度人以素食为主）。彭清医生明天会来到marduri，我打电话对她说我想吃肉， xuqing医生需要巧克力，她笑话我们。她会认我现在就像电影《甲方乙方》里那个被丢在农村的老板。如果现在在我面前有一只烧鸡，我会很快啃的&溜干净&。我已经在医院开始实习了。Sumit医生是ECCE实习生的带教医生，他是IOL的fellow。

When he has taken his exericise and is drinking his tea or his beer and lighting his pipe;when,in his garden or by his fire,he sprawls in an aggressively comfortable chair;when well-washed and well-brushed,he resolutely turns in church to the east and recites the Creed (with genuflexions,if he likes genuflexions)without in the least implying that he believes one word of it;when he hears or sings the most crudely sentimental and thinnest of popular songs,unmoved but not disgusted;when he makes up his mind who is his best friend or his favourite poet;when he adopts a party or a sweetheart;when he is hunting or shooting or boating,or striding through the fields;when he is choosing his clothes or his profession —— never is it a precise reason,or purpose,or outer fact that determines him;it is always the atmosphere of his inner man.

在他锻炼完后，喝着茶或是啤酒，点起烟斗的时候；花园里或是炉火旁，敞着身躺在一张舒适的椅子上时；在他沐浴完，穿上体面的衣服，毅然决然得走进教堂，对着东面，（跪拜着，如果他喜欢如此的话）默念着使徒信经时候，即便那并不意味着他相信内中的每句话；当他听到或是吟唱那些极度煽情肤浅的流行歌曲时，不会为之感动却也不至于厌恶；当他决议谁是他最好的朋友，哪首诗是他的最爱的时候；当他去参加一个派对或是找女朋友的时候；当他打猎、射击、划船或是漫步在田野的时候；当他挑选着自己的衣服，或是自己的职业的时候。绝非有一个明确的理由，或是目的或是外在的事实在指导着他所做的事情，而往往是其内在，是驻在他内心的那个人主宰着他的种种行为。

Linear CO desorbs earlier and quicker than twin and bridged CO with the progressive heating from 25 to 300°C at 0.1MPa, and the three types of adsorption disappear at 265℃.At 205℃ the adsorption amount of linear CO and bridged CO increases with the pressure from 0.1 to 3.0MPa, but the adsorption amount of bridged CO is more than that of linear CO. At 0.1MPa and 25℃, CO2can decompose into CO and then CO adsorbs quickly, namely, CO2→CO+O, but the wave numbers of the adsorptive CO from decomposed CO2 are different from the pure CO, which demonstrates the effect of on CO adsorption. With the pressure of CO2 from 0.1 to 3.0MPa at 25℃, the total adsorption amount increases and the band at 2052cm^(-1) shifts towards higher frequency.

压力保持0.1MPa，温度由25℃升至300℃时，线式比桥式先脱附，至265℃时，3种吸附基本脱附完全；当温度维持205℃不变而压力逐步由。0.1升至3.0MPa时，线式吸附增量较少，桥式吸附增量较多，CO2在0.1MPa，25℃时就能发生快速的解离吸附，即CO2→CO+O，其吸附行为表现为CO的线式吸附，但吸附峰与纯CO吸附时不同；当温度稳定在25℃而压力逐步升至2.5MPa时，不仅CO2吸附量增大，而且其2052cm^(-1)吸附峰有向高波数移动的趋势。

The latedischarges decreased from 9.29 ± 0.97 to 6.71 ± 0.68 with the A-fiberconditioning stimulus increasing from 1 to 5 (n〓8, P〓0. 05).(7) The intervalbetween the conditioning stimulus and test stimulus (C-T interval) wasincreasing, the inhibition tended to plateau off. At shorter time intervalsthe inhibition became more effective. When C-T interval was limited in 50ms,the inhibitory effects was the strongest, here, the late discharges reducedfrom 12.57±1.21to 2.29±0.42 (n=11, P＜0. 01).(8) Behavior research showedthat the rat model of snake venom exhibited neuropathic pain with heathyperalgesia, cold and mechanical allodynia, which corresponding to the acuteelectrophysiological findings.

此时轻刷WDR神经元的感受野不能引起其活动改变，但伤害性齿镊夹捏仍可引起WDR神经元放电增多；〓5〓晚成分放电的潜伏期缩短，即宁静期的时程变短，由给蛇毒前的118.83〓3.67ms降至50.72〓1.36ms〓n〓32，P〓0.01〓；〓6〓在正常动物，如果预先给予只激活A纤维的弱条件电刺激〓mA，100μs〓可抑制随后的伤害性检验刺激所诱发的WDR神经元的晚成分放电，当条件刺激个数从1增加至5时，每次伤害性检验刺激所诱发的晚成分放电数从9.29〓0.97个降至6.71〓0.68个〓n〓8，P〓0.05〓；〓7〓固定条件刺激数为1个，当条件刺激与检验刺激之间的间隔增大时，A纤维条件刺激对WDR神经元晚成分放电的抑制作用逐渐减弱，当条件刺激与检验刺激之间的间隔在50 ms以内时，抑制效应最为显著，此时，晚成分放电数由正常时的12.57〓1.21个降至2.29〓0.42个〓n〓11，P〓0.01〓；〓8〓与急性研究中的WDR神经元电活动的变化结果相匹配，利用蛇毒制备的大鼠模型在行为学上表现为热痛觉过敏、冷觉的痛性感觉异常及机械痛觉过敏等慢性痛症状。

At the same time, most WDR neurons failedto respond to the light brush applied to the receptive fields, but they couldbe intensively excited by the noxious pinch.(5) The latency of the latedischarges was shortened from 118.83 ± 3.67ms to 50.72 ± 1.36ms (n〓32, P〓0. 01).(6) Preceding graded number of A〓fiber conditioning inputs (〓mA, 100 μs) delayed the C-activity evoked by the following nociceptive teststimulus activating both A- and C-fiber applied to the sciatic nerve. The latedischarges decreased from 9.29 ± 0.97 to 6.71 ± 0.68 with the A-fiberconditioning stimulus increasing from 1 to 5 (n〓8, P〓0. 05).(7) The intervalbetween the conditioning stimulus and test stimulus (C-T interval) wasincreasing, the inhibition tended to plateau off. At shorter time intervalsthe inhibition became more effective. When C-T interval was limited in 50ms,the inhibitory effects was the strongest, here, the late discharges reducedfrom 12.57±1.21to 2.29±0.42 (n=11, P＜0. 01).(8) Behavior research showedthat the rat model of snake venom exhibited neuropathic pain with heathyperalgesia, cold and mechanical allodynia, which corresponding to the acuteelectrophysiological findings.

此时轻刷WDR神经元的感受野不能引起其活动改变，但伤害性齿镊夹捏仍可引起WDR神经元放电增多；〓5〓晚成分放电的潜伏期缩短，即宁静期的时程变短，由给蛇毒前的118.83〓3.67ms降至50.72〓1.36ms〓n〓32，P〓0.01〓；〓6〓在正常动物，如果预先给予只激活A纤维的弱条件电刺激〓mA，100μs〓可抑制随后的伤害性检验刺激所诱发的WDR神经元的晚成分放电，当条件刺激个数从1增加至5时，每次伤害性检验刺激所诱发的晚成分放电数从9.29〓0.97个降至6.71〓0.68个〓n〓8，P〓0.05〓；〓7〓固定条件刺激数为1个，当条件刺激与检验刺激之间的间隔增大时，A纤维条件刺激对WDR神经元晚成分放电的抑制作用逐渐减弱，当条件刺激与检验刺激之间的间隔在50 ms以内时，抑制效应最为显著，此时，晚成分放电数由正常时的12.57〓1.21个降至2.29〓0.42个〓n〓11，P〓0.01〓；〓8〓与急性研究中的WDR神经元电活动的变化结果相匹配，利用蛇毒制备的大鼠模型在行为学上表现为热痛觉过敏、冷觉的痛性感觉异常及机械痛觉过敏等慢性痛症状。

At the rear was an innovative combination transaxle with the gearbox, clutch, differential, and inboard-mounted drum brakes.

在后面是与变速箱，离合器，差的创新结合变速，和内侧安装鼓式制动器。

For more people can apprecaite and have the master work, there is reproduction painting appears in the market, the large various selection of paint,the high saturation of color plus the plentiful sfumato, to make the reproduction perfect copy and detail as original painting, so as to meet the requirment of amateurs who love art paintings,they do not need to pay high price to get classical paintings.

颜料色域广，色彩饱和度高，色彩层次丰富，图像色彩还原真实，能完美的复制原作，满足艺术爱好者欣赏，艺术爱好者们不用支付昂贵的价格就能拥有经典油画。