前后的例句大全

In circuit design of linear potentiometer, owing to the influence of input and output impedance for front and back stage circuits, and its absurd installation, linear potentiometer will cause nonlinear response. It makes to fall short of precision of circuits and control system.

在线性电位器的电路设计中、电路前后级的输出和输入阻抗的影响以及使用与安装不当都可能引入非线性，造成电路和控制系统的精度达不到要求。

The estrogenic activities and mutation effects of nonylphenol ethoxylates before and after microbial degradation were studied with the recombinant gene yeast and SOS/ Umu test.

采用重组基因酵母和SOS/Umu试验研究了壬基酚聚氧乙烯醚（NP10EO）经生物降解前后的雌激素活性和致突变活性。

The better synergy effect of the bifunctional catalyst was obtained at the space velocity around 1000 mL/ ( g · h).

通过反应前后CO2含量的比较，得到较佳催化剂协同效应时的空速为1000mL/（g·h）。

Variation Regular of Microstructure of Black Fungus before and after Compression

黑木耳压缩前后微观结构的变化规律

The researches of volcanic earthquake activities recorded at Tianchi Volcano Observatory ( TVO) since 1999 showed that the volcanic earthquake activities changed their features before or after the occurrence of the intermediate-deep earthquakes, magnitude 5.0 or larger than that, in the Northwestern Pacific Ocean.

对1999年以来长白山火山观测站记录到的火山地震活动进行了研究，发现在西北太平洋5.0级以上中深源地震发生前后，均有火山地震活动发生变化。

Based on the formula of index error calculation of worm-type cam, an improvement of nearly 30% on index error is first made by optimizing the index error.

以蜗式凸轮分度机构的分反误差计算公式作为主要依据，首先对分度误差进行了优化，使优化前后的分度误差改善近30%；

DNA parameter changes in rectum carcinoma after enema treatment with scorpion venom

东亚钳蝎毒灌肠治疗大肠癌前后肿瘤组织中DNA参数的变化

369 cases with periarthritis of shoulder were divided as two groups. They respectively accepted audio frequency electrotherapy, ultrashort wave therapy. Ultrashort wave therapy was used by placing 20? cm × 30? cm capacitance electrodes in front and behind knee and slight heat applied.

369例肩周炎患者，分两组分别应用音频电、超短波疗法进行治疗。超短波疗法：选用20cm×30cm电容电极于膝关节处前后对置，微热量；

Around the day of Slight Heat, most areas in the South China see the coming the period with the most thunderstorm days.

小暑前后，我国南方大部分地区各地进入雷暴最多的季节。

But the indexes of blood stream dynamics were steady and there were not anoxemia and the cumulation of CO2.

但采血前后血流动力学稳定，临床未见缺氧、CO2蓄积等异常。

Endothelial function was assessed in the branchial artery by high-resolution ultrasound technique before and after the treatment.

采用高分辨率血管外超声法检测治疗前后肱动脉内皮依赖性血管舒张功能，并与28例正常对照者（对照组）比较。

Noble babies had flat boards strapped to their heads-one in front and one in back.

贵族婴孩的头部前后各用一块平板捆扎.

In D group PRA, AII and ALD after fasting were consistent with them before fasting ( P > 0. 05 ).

而D组禁饮食前后PRA 、 A及 ALD值无明显变化 ( P>0.05 ).

Specialist in Car Windscreen Replacement and Insurance Claims Service.

专营汽车前后大镜维修及保险赔偿服务。

There are significant difference in Efficiency, Quality, Cost, Service value between expected value and perceived value.

其中游客在游览前后对效率价值、质量价值、成本价值、服务价值的认知存在显著差异。

The treatment group compared with before and after treatment VAS points P0.01, the difference was statistically significant.

治疗组治疗前后VAS积分比较P0.0l，差异有统计学意义。

Once the last moon of the lunar calendar coming, people have been preparing the several festivals around the Spring Festival.

春节庆典历时近一个半月，腊月一到，人们便开始忙碌起来准备迎接春节前后的几个节日。

Corresponding relationship between medullary processes and pre-postcentral gyri on horizontal sections

端脑横切面上髓突与中央前后回的对应关系

If the answer is no, you'll likely leave it near the July 7 lunar eclipse.

如果答案是否定的, 你在7月7日的月蚀前后就会做个了结了.

Titer and avidity of serum antibody to Porphyromonas gingivalis before and after periodontal therapy

牙周治疗前后血清抗体滴度及亲和性的变化