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- vacuum retarding mechanism 真空减速机构
- The retarding mechanism of STPP was analyzed from the viewpoint of crystal growth. 从晶体生长的角度分析了三聚磷酸钠对二水石膏的作用机理。
- An automotive road spring bolt rapid replacer comprises a shell component, a power input mechanism, a triple retarding mechanism and a power output mechanism. 一种汽车板簧螺栓快速拆装器，它由机壳构件、动力输入机构、三级减速机构和动力输出机构组成；
- The problem of accelerated setting of SAAS cement was solved by a series of tests. Retarding mechanism of the new cement was discussed and rational technical method was proposed. 针对固态碱组分碱矿渣水泥的速凝问题，通过大量实验找出了适用于这种新型水泥的缓凝剂，同时讨论了固态碱组分碱矿渣的缓凝机理，提出了合理可行的技术路线。
- The flame retarding mechanism of polyazodiphenylene phenylphosphonate (PAPPP) to PET was investigated by thermogravimetry (TGA) and pyrolysis gas chromatography-mass spectroscopy (PGC-MS). 与纯PET相比,共混物的热解温度范围变宽,残余量增加,且在PET燃点附近的可燃性挥发气体的生成量降低,表现为凝聚相阻燃机理。
- The pape introdues the types, synthesizing methods, retarding mechanism,performanceand application method of the alkylenephosphonic acids and sals oil well cement retarder. 综述了用作油井水泥缓凝剂的炕撑膦酸（盐）种类、合成方法、缓凝机理以及在水泥浆中的性能和使用方法。
- The retarding character and retarding mechanism of main flame retardant are reviewed,and the developing trend in the future is pointed out. 概述了各种阻燃剂的特点和阻燃机理,指出未来阻燃剂发展方向。
- Particular attention is focused on retarding mechanism and retarding characteristics of the intumescent flame retardants and their development. 重点探讨了膨胀型阻燃剂的阻燃机理和阻燃特性，并介绍了相关产品的发展动向。
- The flame retarding methods and flame retardant of high expansion PE were studied according to burning phenomenon of polymer and flame retarding mechanism. 根据聚合物燃烧现象和一般阻燃机理寻求研究高发泡聚乙烯的阻燃方法和阻燃剂。
- Some pumps and all vacuum cleaners work by suction. 有些泵和所有真空吸尘器都是借吸力工作的。
- In this paper, category, characteristics, retarding mechanism and application in polymer of phosphorous flame retardants was summarized. The prospect of phosphorous flame retandants was reported. 综述了磷系阻燃剂的种类、性质、阻燃机理及在高分子材料中的应用,并对其前景进行了展望。
- The development course, classification, process flow of preparation and flame retardant mechanism of intumescent fire resistant coating are summarized. 综述了膨胀型防火涂料的发展历程、分类、制备工艺流程及其阻燃机理。
- His wife's death left him a vacuum in his life. 他妻子的去世使他的生活变得空虚。
- Her husband's death left a vacuum in her life. 她丈夫的死使她的生活变得空虚。
- Some people are living in a vacuum. 有些人过着与世隔绝的生活。
- A vacuum cleaner is a handy household tool. 吸尘器是一种使用方便的家庭用具。
- In addition, flame retardant mechanism of microcapsules flame retardent are also introduced;lastly,the further development of the new materials are prospected. 介绍了微胶囊阻燃剂的阻燃机理,并对微胶囊阻燃材料的发展作了展望。
- The shop repairs vacuum cleaners. 这家店修理吸尘器。
- The porter turned off the vacuum. 清洁工关掉真空吸尘器。
- The symbol for the speed of light in a vacuum. 表示真空中光速的物理符号
