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This text introduces the main structure and characteristics of the 1000MW super criticality once-through boiler and it's start system in HDPI Zouxian Power Plant firstly, then aiming HDPI Zouxian Power Plant 1000MW super criticality once-through boiler's dry state and wet state conversion in starting and shuting down ,the author makes research and analysis.finally, the author thinks that we could ensure that the dry state and wet state conversion is all right and smooth , then ensure opening and shuting down to be all right,if choosing control strategy properly and opportune moment.

本文首先介绍了邹县电厂1000MW超超临界直流锅炉及其启动系统主要结构特点，然后针对邹县电厂1000MW超超临界直流锅炉启动及停机过程中的干、湿态转换控制策略做了研究和分析。文章最后认为，只要干、湿态转换控制策略得当，时机把握合适，就会保证超临界直流锅炉干、湿态转换顺利完成，进而保证开停机顺利进行。

Two coordinate conversion matrices respectively for rotation angles in two rotators express the same conversion,they are thus equal,and by contrasting them the relationship between these two kinds of rotation...

分别用两个三自由度转动体的转角所表示的两个直角坐标系之间的空间旋转坐标变换矩阵，代表同一变换，因而相等，由两个矩阵的对应元素相等可直接得出两个转动体之间的转角关系式。

The frequency synthesizer includes a completely on-chip LC VCO and a 90 degrees phase splitter for generating the I and Q LO signals to the down-conversion mixers in receive mode and up-conversion mixers in transmit mode.

频率综合者在-芯片LC VCO上-完全包含a和一产生我和 Q北美印第安人90度分相器为向挫折-转换混合者发信号示意在朝派收到方式和沿着-转换混合者在朝派传送方式。

The frequency synthesizer includes a completely on-chip LC VCO and a 90 degrees phase splitter for generating the I and Q LO signals to the down-conversion mixers in receive mode and up-conversion mixers in transmit mode.

频率合成器完全地包括一块在芯片LC VCO 并且90 程度逐步采用分离机为引起I 并且Q 低信号对下来转换搅拌器接受方式并且转换搅拌器传送方式。

Alkylation of phenol was used to research catalytic activity of Y/MCM-41. The results have shown that Y/MCM-41 has higher catalytic activity than the traditional Y and MCM-41. For the Y/MCM-41, not only the conversion of phenol raised with tert-butyl alcohol and reaction temperature raising, but also Useful time of Y/MCM-41 was longer. For the Y/MCM-41, the conversion of phenol raised with reaction time raising, But that increased slowly after 3 hours.

结果表明：Y/MCM一41分子筛具有比Y型或MCM一41更高的催化活性；而对于Y/MCM一41分子筛，随着叔丁醇和温度的增加，苯酚的转化率也增加，且使用寿命也较长；对于Y/MCM-41分子筛，随着反应时间的增加，苯酚的转化率增加，但反应3小时之后，苯酚转化率增加就不明显了。

In this thesis, this system is used for epoxidation of propylene and styrenewith good results. The solvent effect is investigated for epoxidation of styrene. In the mixedsolvent of dimethyl phthalate / TBP or phenyl ether / TBP, the selectivity for styreneoxide is good but the conversion of styrene is low due to the coordination to thecatalyst of the solvent. When part of dimethyl phthalate or phenyl ether is replacedby toluene, the conversion increases and the selectivity keeps constant.

邻苯二甲酸二甲酯或二苯醚等与磷酸三丁酯的混合溶剂中环氧化的选择性较高，但由于溶剂对催化剂的配位作用抑制了催化剂的活性，苯乙烯转化率很低；当部分的邻苯二甲酸二甲酯或二苯醚被甲苯取代后，苯乙烯的转化率提高，生成环氧苯乙烷的选择性不变。

Underoptimal conditions, in toluene / dimethyl phthalate / TBP, after EAHQ was oxidizedwith 〓, then the catalyst and styrene were added, the conversion of styrene basedon EAHQ is 68%, the selectivity for styrene oxide based on styrene is 92% and theTON of the catalyst is 500; in toluene / phenyl ether / TBP, epoxidation of styrenewas performed with 〓 generated in situ, the conversion is 46%, the selectivity is94% and the product can be separated by distillation under reduced pressure.

优化条件下，甲苯／邻苯二甲酸二甲酯／TBP(2／2／1，体积比)中，EAHQ先用〓氧化完全后，再加入催化剂A和苯乙烯进行环氧化反应苯乙烯相对于EAHQ的转化率为68％，生成环氧苯乙烷的选择性为92％，催化剂A的TON达到500；甲苯／二苯醚／TBP(1／3／1，体积比)中，原位生成〓条件下苯乙烯相对于EAHQ的转化率为46％，生成环氧苯乙烷的选择性为94％，产物可通过减压蒸馏分离。

This thesis hopes the research can offer reference to the issuers while setting conversion premium in order to design the good convertible debt. Enable the convertible debt to give play to its financing function effectively. The investors can also determine whether to buy the convertible debt or not according to the deterministic factors of conversion premium.

本文希望针对此研究结果能提供发行公司在设定转换溢价时之参考，以设计良好的可转换公司债，使可转换公司债能有效发挥其融资功能，对於投资人而言，亦可依据转换溢价影响因素决定是否购买可转换债券。

Water area and cropland were the main land cover types that reed converted. Lower places in north and east parts of Baiyang Lake were the ones occurred the conversion between reed land and water area, and higher places in northwest and southwest occurred the conversion between reed land and cropland.

研究结果表明，16年间，就整个白洋淀而言，苇地变化经历了&落－起－落&的过程，水域与耕地是苇地变化的两个主要方向，苇地与水域的转变主要发生在地势较低的北部与东部地区，苇地与耕地的转变主要发生在西北与西南的地势较高地区。

With the trip valve to achieve fast-forward and work into the conversion, using two two-pass solenoid valve for a two-speed conversion between work into, in order to ensure the dimensional accuracy of the feed, with only the block to limit stays.

用行程阀实现快进与工进的转换，用二位二通电磁换阀进行两个工进速度之间的转换，为了保证进给的尺寸精度，用止挡块停留来限位。

Foods high in this vitamin include oily fish such as salmon, tuna and, and fish liver oils.

维生素D含量高的食物包括诸如大麻哈鱼、金枪鱼和鲭鱼之类的油鱼以及鱼肝油。

We need you to cosign our public letter demanding that press intimidation cease immediately, and that all charges be dropped.

我们需要您cosign我们的公共信，要求记者立即停止恐吓，并要求所有收费下降。