查询词典 ray grass

Knowledge of tungsten anode X-ray tube spectra is essential for X-ray dose control, X-ray image quality evaluation and dual-energy X-ray imaging etc. A model-based tungsten anode X-ray tube spectrum reconstruction method is presented in this paper.

X射线球管光谱信息是进行X射线曝光剂量控制、X射线成像质量评估、X射线双能量成像等必不可少的，为此本文提出一种基于模型的钨靶X射线球管光谱重建方法。

In recent years, although multichannels (more than 256) gamma ray spectrometer has been made overseas, field gamma ray spectrometric survey is only used to determine contents of uranium, thorium and potassium, by reason of applying gamma ray spectrometry later than developing instruments, can't obtaining full spectrum because of the problem of stabilizing gamma ray spectrometric peaks, and it is impercipient for field gamma ray spectrometry.

作者分析了国内外野外地面伽玛射线全谱测量存在的问题主要是：（1）目前国内外野外地面伽玛能谱测量中主要使用四道能谱仪，仅利用能量大于1000keV的伽玛射线，通过数个谱段的读数结果，计算铀、钍、钾的含量，而没有利用伽玛射线全谱，使80％以上的伽玛射线能谱信息摒弃未用。

objective to compare image manifestations values between high resolution computerized tomography and x-ray chest film in idiopathic interstitial pneumonia in the elderly.methods we analysed and compared image manifestations between hrct and x-ray chest film with 12 cases of clinically suspected iip in the elderly.results ct and hrct had more sensitivity and specificity than x-ray chest film.there were more image manifestations in hrct such as grand grass,net,line,nodular,honeycombing,bronchiectasis,honeycombing cyst,peribronchovascular interstitial thickening and irregularity.there were significant difference between them （p.05）.these patients who were suspected iip had better control and remission after being treated with hormone and immuno-suppressive drug.conclusion it have more significant virtues in hrct to manifest iip in the elderly than x-ray chest film,and it also may manifest iip curative effect.

目的 比较高分辨断层摄影术、x线胸片检查对老年特发性间质性肺炎的诊断价值。方法对12例临床疑诊为间质性肺炎的老年患者，进行胸部hrct与胸部平片检查，并对照分析。结果胸部ct在诊断方面比常规胸片有较大的优越性，hrct则有更高的敏感性和特异性，hrct表现出磨玻璃影、网状、线条、小结节、蜂窝影，支气管扩张、细支气管扩张、支气管壁和血管壁增厚及不规则等征象，12例临床疑诊为间质性肺炎的患者，经胸部hrct诊断的12例，而胸部平片诊断的仅有2例，二者比较差异有显著性（p.05），hrct疑诊的iip患者，经临床激素及免疫抑制剂治疗，病情均得到控制或缓解。结论 hrct表现老年间质性肺炎的特点明显高于胸部平片，且hrct可以反映间质性肺炎的疗效。

14What do they mean? 15You should be quiet. 16We shouldn't walk on the grass. 17We must read English every day. 18make noise 19only four years old 20his cousin 21some public signs 22Keep off the grass 23on the bird's cage 24on the birds' cage 25stay away from the building 26know a lot about stamps 27No smoking 28No littering 29No parking 30Do not touch 31No eating or drinking 32a ten-yuan note 33look around 34fine ten yuan 35a park keeper 36point to the sign 37quickly walk to the grass 38see something on the grass 39 There is no one nearby. 40You shouldn't litter. 41That sign means 'Danger'.42We should keep off the grass. 43We shouldn't smoke. 44You shouldn't park your bike here. 45You shouldn't eat or drink. 46the boy in the green sweater 47shake my head 48want bread for breakfast 49put your rubbish in the bin 50We must stay away from it.

15你应该保持安静。16我们不应该走在草地上。17我们必须每天读英语。18发出声音 19仅仅四岁 20他表妹 21一些公共标志 22禁止践踏草地 23在那只鸟笼上 24在那些鸟笼上 25远离那幢大楼 26懂得许多关于邮票27禁止抽烟 28禁止乱扔垃圾 29禁止停车 30禁止触摸 31禁止吃喝 32一张十元钞票 33看看四周 34罚款十元 35一位公园管理员 36指向那个标志 37快速地走向草地 38看到某物在草地上 39附近没有一个人。40你不应该乱扔垃圾。41那个标志意思是"危险"。42我们应该勿踏草地。43我们不应该抽烟。44你不应该把你的自行车停在这里。45你不应该吃喝。46穿着绿毛衣的男孩 47摇我的头 48想要面包做早餐 49把你的垃圾放在垃圾箱里。50我们必须远离它。

In summer experiment, Zoysia grass has the best chilling tolerance, followed by 'A33' Pensacola Bahia grass, Carpet grass and Centipede grass, and tropical Carpet grass has the worst chilling tolerance.

在冬季试验中，相对主茎长以Pensacola百喜草最高，其次为日本芝草；改型百慕达草'Sahara'；假俭草；普通百慕达草和地毯草相近，最低为地毯草。

The cordyceps grass vegetable, the cordyceps grass is sour, the cordyceps grass many sugar, SOD—enzyme, guanin, urine, the gland... etc., a materials of the pit are all with the natural cordyceps grass homology, the poison reason evaluation:Have no poisonous side effect to the human body, is a stub in the world new species of biggest cordyceps grass in very unique body.

虫草素、虫草酸、虫草多糖、SoD、腺嘌岭、鸟嘌呤、尿嘧啶、腺苷等，核苷类物质都与天然虫草相同，毒理评价：对人体无任何毒副作用，是一株世界上绝无仅有形体最大的虫草新品种。

The annual variation of each meteorological parameter likes cosmic ray flux. There is obvious correlation existing between cosmic ray and each meteorological parameter. After the meteorological effect of cosmic ray being corrected by using multianalysis, there is no annual variation of cosmic ray.

论文还对1994-2004年间的气象数据进行了整理分析，气压、室内温度、室外温度与宇宙线触发率有着相似的年变化，存在较强关联；之后对宇宙线触发率进行了多元气象参量修正，修正后的宇宙线触发率不再有明显的年变化。

And then, a window-type novel x-ray crystal spectrometer was put forward based on the elliptically curved crystal analyzer. It was coupled to an x-ray CCD camera, and a set of system had been designed and constructed. The spectrograph is useful in the experiments of x-ray diagnostics, for example in x-ray lasers, inertial confinement fusion, laser-matter interaction, and so on.

本论文从X射线晶体衍射和椭圆自聚焦几何光学原理出发，剖析追究了椭圆型弯曲X射线晶体谱仪在实际应用中产生问题的根源，率先从技术上提出解决目前椭圆型弯曲X射线晶体谱仪存在问题的思路，论证了其相应实施方案的可行性。

It consists of fitting seismic ray traveltimes and positions to data calculated by ray tracing. In order to improve inversion stability and efficiency, seismic ray is described by Hamilton function and ray tracing is done in phase space. Validation tests on synthetic and practical data are analyzed. The tests show that this tomographic method is effective for estimating velocity field in complex media.

为提高反演的稳定性和计算效率，引入了Hamilton函数描述射线，在相空间计算反演所需的射线路径和目标函数对模型参数的导数，对理论模型和实际地震资料进行了试算，试算表明该方法对复杂介质具有较强的适应能力。

Results In 7 cases of odontoid process fracture, X-ray demonstrated 4 cases and CT demonstrated 5 cases, whereas the spiral CT reconstruction diagnosed 7 cases, which could display the displacement of fracture clearly. The X-ray and CT showed asymmetric space between left and right gaps of atlantoaxial joint in 6 cases, while spiral CT reconstruction showed normal and excluded the possibility of atlantoaxial dislocation. There was one case of lateral atlantoaxial joint dislocation, which was demonstrated by the spiral CT reconstruction clearly but not by the X-ray and CT scan. There were 3 cases of atlantoaxial congenital deformity (1 case of absence of both posterior arch of atlas and odontoid process and 2 cases of maldevelopment of the odontoid process), which were displayed clearly by spiral CT reconstruction, but misdiagnosed as odontoid process fracture and atlantoaxial subluxation by X-ray and CT scan.

结果 7例齿状突骨折中，X线显示4例，CT显示5例，CT重建确诊7例，且清楚显示骨折移位情况；6例X线、CT显示寰枢椎左右间隙不对称，通过CT重建排除寰枢关节半脱位；寰枢外侧关节脱位1例，CT重建可清楚显示，而X线片和CT平扫均未能显示；寰枢椎畸形3例，分别为齿状突、后弓缺如1例，齿状突发育不良2例，CT重建均能清楚显示，而X线、CT均误诊为齿状突骨折、寰枢椎半脱位。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。