查询词典 carbon

In the determination of methyl acrylate,butyl acrylate and methyl methacrylate in ambient air,the sample was absorbed with active carbon and resolved with carbon bisulfide,and then determined by GC.After the qulitation by retention time and quantitation by external standard method,the good linearity and low detection limit were got.

测定环境空气中的丙烯酸甲酯、丙烯酸丁酯和甲基丙烯酸甲酯时，气样采用活性炭吸附，用二硫化碳解析，直接进气相色谱仪检测，根据保留时间定性，外标法定量，能获得良好的线性和较低的方法检出限，不仅精密度、灵敏度和重复性良好，而且可操作性强，易于在环境监测系统中推广。

Methods Capillary gas chromatography and FFAP capillary column were applied; active carbon tube was used to collect the organic solvent samples in the air of workplaces, the samples were dissolved with carbon bisulfide and determined with capillary gas chromatography.

采用毛细管气相色谱法，选用FFAP毛细管分离柱，用活性炭采集工作场所空气中有机溶剂，经二硫化碳解析后进样测定。

Carbon ink: This type of ink aims at achieving the same type of copy ability as carbon paper.

碳墨：这种墨的作用是要达到相等于使用碳纸所具有的复写能力。

For the same amount of carbon, there is twice as much oxygen as in carbon monoxide.

同一份量的碳，所需要的氧的分量却是一氧化碳的二倍。

This paper analyzes and investigates the carbon carbon-accumulation environment and process in peatlands from both theory and practice.

本论文从理论和实例两个方面对泥炭地聚碳环境和聚碳过程进行了分析和探讨。

This paper introduces development and application of ozone biological activated carbon process and compared ozone biological activated carbon process with other similar process.

本文介绍了臭氧生物活性炭工艺的发展及应用状况，并将臭氧生物活性炭工艺与其它相似工艺进行比较。

In production process of carbon fiber, appropriately increase preoxidation retention time will be propitious to the performance of carbon fiber.

在碳纤维生产过程中，预氧化停留时间适当增加有利于碳纤维性能的提高。

At the end of the process a carbon core of the star will be surrounded by a shell where helium is still being fused into carbon, which in turn is surrounded by and envelope where hydrogen is converted into helium.

该过程结束时碳的星核会被一层仍然在进行氦聚变为碳的壳层包围，而在这个氦-碳聚变层的外面还包围着一层由氢-氦聚变层。

In plain carbon steel, carbon is the only alloy element.

只有在普碳钢中，碳才是唯一的合金元素。

RESULTS: The carbon femoral head prostheses implanted in animals produced non-toxic side effects, without significant inflammatory response or foreign body reaction. Furthermore, new cartilage tissue around carbon prosthesis was found, while there was no obvious wear debris after sports experiments.

结果：碳质股骨头假体在动物体内无毒副作用，无明显炎症反应和异物反应，在碳质假体周围发现有新生软骨组织，运动实验后碳质股骨头表面没有明显磨损和碳颗粒游离现象。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐