In addition , this article also researched the friction marks of steel ball after long - time friction tests with sem images and spectrum analysis , and summarized the principle how to reduce friction and wear of three prescriptions 另外,本文还利用sem图像和能谱分析等手段,对长磨试验后的钢球磨痕情况进行了研究,归纳总结出了三种配方的减摩抗磨和自修复机理。
Soak specimen in warm after a specified time then observe whether specimen surface had degenerative conditions as blister , fadeaway , swell . … etc . to judge its quality and calculate the change rate of weight before / after test 恒温水槽：材料经本水槽一定时间之温水浸渍试验后，观察是否变质，表面有无起泡、褪色、膨胀等现象，以判暄品质，亦可计算试验前后之重量变化率。
Trial and error we found a formula which fitted , " wrote tench , who had nothing to do with the brown case but discovered the italicized letters when studying the ruling . the judge ' s secret message was : " jackie fisher , who are you 坦奇并未插手布朗一案，但他在阅读判决书时发现了那些斜体字母，他写道： “经过反复试验后，我们发现有个公式恰好可用来破译法官的密码。 ”
The outcome shows that such digital electronic speed governor is in possession of stable timing rate of 1 . 0 % and instantaneous timing rate of 6 . 2 % . and it is worth a wide popularization for its simple structure and low cost 在对hondagx31汽油机进行了大量试验后结果表明：在标定转速6000r min时，该电子调速器可以达到1 . 0的稳态调速率和6 . 2的瞬态调整率，优于国家标准的要求。
" after much trial and error , we found a formula which fitted , " wrote tench , who had nothing to do with the brown case but discovered the italicized letters when studying the ruling . the judge ' s secret message was : " jackie fisher , who are you 坦奇并未插手布朗一案，但他在阅读判决书时发现了那些斜体字母，他写道： “经过反复试验后，我们发现有个公式恰好可用来破译法官的密码。 ”
Then , based on the analysis of parachute design process , an expert system is used for the uncertain parameter decision and airdrop experiment fault diagnosis in the course of parachute design . the expert system is used in the parachute integrated design system 通过对降落伞设计过程的分析，首次将专家系统技术引入降落伞设计过程中的不确定参数决策和空投试验后的故障诊断，并在降落伞集成设计系统中得到了运用。
Zero - expansion models satisfy the request of space structures for they can possess high dimensional stability in temperature - change fields . the surface morphology , electrical conductivity and spectral reflectivity of al / kapton films before and after space environment simulated tests were 对于al / kapton薄膜试验分别采用原子力显微镜、四探针电阻测量仪、紫外可见分光光度计测试其空间环境试验后的表面形貌、面电导率、光学反射率。
4 . designing and realizing a missile testing and training view simulation system , that can simulate the flight trajectory real time and reappear the entire testing process after experiment . at last , this thesis provides the summarization of the work and the content of the future research 4 、设计并实现了一个导弹试验训练视景仿真系统,既可以实时的模拟导弹的飞行状态,又可以在试验后直观地重现整个试验过程,便于分析试验结果和数据。
When finished the tests of chloride containing in the chlorinated polyethylene and the confecting of 0 . 001 % standard vitriol liquor in the stearic acid standard , it was found out that the test result according to the test methods in the standard requirement were different from the actual requirement 摘要按对氯化聚乙烯标准中氯含量的测试和硬脂酸标准中0 . 001 %硫酸标准溶液的配制方法进行试验后，发现按标准中要求的试验方法检测出来的数据与实际要求不一致。
By using the attribute clustering analysis through turf vegetation index , 15 tested turfgrasses could be divided into 3 groups ( non - sensitive , medium sensitive and sensitive ) , and then , by using the sulphur content in leaf and turf vegetation index as grouping factors , the tested turf grasses were further divided into 3 groups ( strong tolerance , medium tolerance and weak tolerance ) 在比较试验后发现，草坪草对氟污染的反应不同，用草坪植被指数作属性进行聚类分析，将15种试验草坪草划分成了不敏感，较不敏感和敏感3个反应类型，以草坪草叶片含硫量和草坪植被指数作属性进一步聚类，划分出了强抗性，中抗性和弱抗性3个抗性类型。
