查询词典 chemical method

By analyzing a chemical noisy signal, a method which can sample continuous signal simply and economically is introduced.

通过分析一例含噪化工信号，介绍一种经济简便的对连续信号采样的方法。

The fluffy film may fall off from Cf if the pretreat method of Cf suface was not appropriate. Boron sources was ahead loaded on the surface of Cf by in situ chemical reaction to protect the fiber from corrasion of vapor such as NH_3 and increase the combination between BN film and Cf. The measured surface area of the composite fiber increased greatly to

表面的氮化硼绒膜与碳纤维的结合程度，取决于碳纤维表面预处理的方式，先期在表面通过原位化学反应引入硼源物质，形成保护膜，可以避免碳纤维在整个反应过程中受到气相侵蚀而影响氮化硼绒膜与碳纤维的结合程度，该复合材料的比表面积大幅提高，达到96m~2／g。

To study the chemical constituents of Corydalis adunca Maxim., the ethanolic extract was treated with common acid-base method.

本文就灰绿黄堇的化学成分进行分离、分析，并对其生物碱的生物活性进行一些初步的研究。

The aluminum hydrolysis process has been investigated using chemical analysis as the main testing method, we discovered that temperature plays an important part in the formation of products and its properties, at the same time, the change of reaction with the change of temperature is a reversible process. The experiment further proved that the optimal formation temperature of AlCl3·4Al3·7.5H2O and AlCl3·7Al3·18H2O is 75℃,the productivity rate of products were higher at this temperature and the crystallizability were better.

以化学分析为主要监测手段，对AlCl3·4Al3·7.5H2O和2AlCl3·7Al3·18H2O形态过程进行了研究，结果表明，温度对于产物的行成及性能有很大的影响，并且反应随温度的变化基本上是一个可逆的过程，同时，实验表明 75℃为AlCl3·4Al3·7.5H2O和2AlCl3·7Al3·18H2O析出的最佳温度，该温度下产物的产率较高且结晶状态良好。

The method of the software,hardware design and data processing of the chemical fuel tank cubage calibration system are introduced,all the error elements of this system are analyzed.

介绍了一化工燃料贮罐容积标校系统软、硬件设计原理和数据处理方法，对标校系统的各种误差成分进行了分析，并运用实际任务中的数据对贮罐标校系统的成果进行了精度验证，结果表明该系统可以提供比较精确的加注量参数。

Article Name The preparation of high purity sodium cyanate by liquid-solid chemical reaction method

所得氰酸钠的XRD衍射图谱与氰酸钠标准图谱完全一致。英文翻译

And the structure and appearance of MnO2 were characterized using various techniques such as chemical analysis, scanning electron microscopy and X-ray diffraction, and the electrochemical performance of MnO2 was discussed using kinds of measurements such as cyclic voltammetry, constant charging/discharging and local action testing method.

采用化学分析、扫描电镜、X射线衍射等实验手段分析二氧化锰的组织结构和形貌，采用循环伏安、恒流充放电及自放电等测试方法分析二氧化锰的电化学性能。

Whereas the tin hydride is used, for preparing functional fivemembered rings ,to induced alkenyl radical translocation/ cyclization process ——oxidaton process by selective activation of a C H bond——developed by Curran et al., thiophenol, non-tin chemical, is used in this new synthetic method for preparing cyclopentane derivatives through a 1,5-hydrogen transfer/cyclization sequenceEq.

在这些目标中，发展无毒、环保试剂实施有效的自由基反应是一具有挑战性的目标。Curran等发明了用氢化锡介导的自由基易位/环化过程是一种通过C H键的选择性氧化制备功能五元环的高效的方法。

This paper reviews technology in decommission and decontamination of the nuclear facility, chemical decontamination method is introduced important.

综述了核设施的退役和去污，尤其是详细介绍核设施的化学去污方法和应用。

Polymer surface metallization belongs to materials design, this thesis studies a new method of polymer surface metallization—chemical deoxidization.

高分子表面金属化就是材料设计的一种，本文研究了高分子表面金属化的一种新技术——化学还原方法。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。