四氯乙烯

The use of the dry-cleaning detergent is more than PCE, gasoline, is also harmful to human health.

干洗使用的洗涤剂多是四氯乙烯、汽油等，对人体健康亦有害。

In view of the current Poly perchlorethylene products such factors as market demand, the company decided not to resume production of these devices.

鉴于目前的聚四氯乙烯产品的市场需求等因素，该公司决定不恢复这些设备的生产。

Besides,there are CS2 chloride method producing CCl4,C1-C2 chlorohydrocarbon perchloride method producing CCl4 and by-prodcucing CCl4,and chloroil method oracetaldehyde method producing CHCl4 etc.

此外，还有二硫化碳氯化法生产四氯化碳、 C1-C3废氯烃全氯化法生产四氯化碳并联产四氯乙烯以及氯油法或，乙醛法生产氯仿等。

The single and joint toxicity of perchloroethylene and 1, 4-dichlorobenze acting on grass carp was studied adopting the additive index method of the aquatic pollution-exposure experiment combined with joint effects of aquatic toxicology.

采用水生污染暴露试验和水生毒理联合效应相加指数法，研究了四氯乙烯和对二氯苯对草鱼的单一毒性与联合毒性。

An intermediate template route was developed to grow cubic silicon carbide nanorods at relatively low temperature of 600~700℃ using tetrachloroethylene (C2Cl4) and silicon tetrachloride (SiCl4) as carbon and silicon sources, respectively by a solvothermal method.

采用中间模板路线在600~700℃相对低的温度下，用四氯乙烯和四氯化硅作为原材料，用溶剂热的方法合成了立方相的碳化硅纳米棒。

The objectives of this study are to investigate the cavitation intensity and acoustic pressure for various liquids of pure water, tap water, ethanol, ethylene glycol and tetrachloroethylene.

本研究针对纯水、自来水、乙醇、乙二醇、四氯乙烯及丙酮等四种化学溶液进行超音波音压及空泡强度的调查。

Using a phase equilibrium apparatus, the solubilities of anthracene and carbazole in dimethyformamide, N-methylpyrrolidinone, cyclohexanone, xylene, dichloroethane and tetrachloroethylene were determined and solubility curves were drawn, providing useful data for crude anthracene processing.

利用液固相平衡实验装置，测定了蒽和咔唑在二甲基甲酰胺、N-甲基吡咯烷酮、环己酮、二甲苯、二氯乙烷和四氯乙烯中的溶解度，并作出溶解度曲线，为粗蒽的分离和精制提供了有用数据。

Methane chlorination is the earliest production method to put industrializes methane chloridate into realization, and the technology is mature.

此外，还有二硫化碳氯化法生产四氯化碳、C1一C3废氯烃全氯化法生产四氯化碳并联产四氯乙烯以及氯油法或乙醛法生产氯仿等。

A dynamic generating toxic gas system and a nose-only exposure system were used for the pharmacokinetic study of inhaled environmental contaminants for benzene, toluene, xylene, ethylbenzene,chlorobenzene, styrene, isopropyl benzene, tetrachloroethylene, nonane and methylcyclohexane in male guinea pig.

用动态配气设备和鼻式吸入方式染毒，采用雄性豚鼠对环境中10种挥发性污染物(苯、甲苯、对二甲苯、乙基苯、氯代苯、苯乙烯、异丙苯、四氯乙烯、甲基环己烷和壬烷混合物)的吸入动力学进行了研究。

On this basis, chosing 15w germicidal lamp with radiation centred at 253. 7nm or 15w blacklight fluorescent lamp with radiation centred at 365nm as the light source respectively, the destruction effects of trace impurities in water by photocatalytic oxidation method using TiO〓 as an immobile phase have been investigated, and the effects are contrasted with photolysis. The investigation is mounted into Phenol aqueous solution, Hydroquinone and Humic Acid aqueous solutions、three representative halohydrocarbons coexisting in main water、the comprehensive index removal of varied trace organic pollutants in main water、the removal of residual chlorine and the disinfecting action, etc..

在此基础上，选择主波长253.7nm的紫外线杀茵灯或主波长365nm的蓝黑管紫外线荧光灯作为光源，研究了TiO〓膜固定相光催化氧化法去除水中微污染物的效果，包括苯酚水溶液、对苯二酚水溶液和腐植酸水溶液的光催化氧化以及自来水中共存的三种典型的氯代烃水溶液三氯甲烷、四氯化碳和四氯乙烯的混合光催化氧化、自来水中有机物总体去除效果以及光催化去除自来水中余氯的作用和光催化的消毒作用等，并进行了光解对比实验。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。