综述了由环氧乙烷制乙二醇、环氧乙烷经碳酸乙烯酯制乙二醇、环氧乙烷催化水合制乙二醇及以合成气制乙二醇研究进展。
Latest advances in preparation of ethylene glycol(EG) were reviewed, including preparation of EG via catalytic hydration from ethylene oxide(EO) and ethylene carbonate(EC), as well as via syngas.
如果你关注与产业部分、豪华轿车、预付款、聚碳酸酯和乙烯，这是可怕的。
If your focus is on the industry part and the limos, the advances, the lawyers, polycarbonate and vinyl, it's horrible.
一个进展是在打印材料方面，苯乙烯和聚碳酸酯这样的热塑性塑料是三十美元一磅，而金属材料更贵；
One is the arrival of much cheaper printing goop.Thermoplastics like ABS and polylactic acid cost around $30 a pound.Metal powders can cost even more.
医用压力传感器是选用医用级聚氯乙烯、聚碳酸脂作为传感器的测压连接管和主体的材料。
Medical selection of medical grade pressure sensor is PVC, polycarbonate sensor manometry as a connecting pipe and the main material.
碳酸二苯酯表现典型的乙烯的酯类的效应。
向电解液中添加碳酸亚乙烯酯（VC），可提高负极界面的导电性与稳定性。
Adding vinylene carbonate(VC) into electrolyte could enhance the conductivity and stability of anode surface.
研究了一种改性碳酸钙在聚氯乙烯(PVC)消防管中的应用情况。
The application of modified calcium carbonate to fire hose of PVC was studied.
本文采用氨水-碳酸铵混合溶液作沉淀剂，通过添加聚乙二醇（PEG）和聚乙烯醇（PVA）制备了高比表面积，大孔容的低铈型储氧材料。
In this dissertation, a series of high specific surface area, large pore volume and low Ce content OSMs were precipitated with mixed ammonia-ammonium carbonate solution, and assisted by PEG and PVA.
本论文从实验得到以下主要结论：1、碳酸钙、高岭土和淀粉填料对聚乙烯微孔薄膜性能影响很大。
It can draw the following conclusions form this experiment: 1. Calcium carbonate, kaolin clay and starch of filling have greatly influence on properties of PE film.
采用加入少量碳酸钠助剂的盐析法新配方处理回收退浆废水中的聚乙烯醇（PVA），并通过正交实验得出了新凝结剂的最佳组成配比。
The recovery of polyvinyl alcohol(PVA)from simulated desiring wastewater by new salting-out is investigated. The optimal component ratio of new salting agent is obtained through orthogonal experiment.
利用扫描电子显微镜观察分析了聚碳酸酯、尼龙6、低密度聚乙烯的微观断裂行为，并对其断裂起因、断裂过程及断裂形态进行了讨论。
The fracture morphology of PC, PA6, LDPE is analyzed by using scanning electron microscopy (SEM), and the fracture cause, fracture process and fracture morphology are discussed respectively.
用毛细管流变仪研究了乙基纤维素（EC）及其高密度聚乙烯（HDPE）复合物，纤维素芳族酯（CAE）及其聚碳酸酯（PC）复合物的剪切流变特性和机理。
The rheological behavior and mechanism of ethyl cellulose (EC), HDPE/EC composite, cellulose aromatic ester (CAE) and PC/CAE composite were studied by capillary rheometer in this paper.
聚酰胺，聚碳酸酯，聚苯乙烯，铜镀镍，不锈钢。
Polyamide, Polycarbonate, Polystyrene, Nickel-plated brass, Stainless steel.
这是一个混合网格的细碳酸钙和聚乙烯树脂。
It is a blend of fine mesh calcium carbonate and Polyethylene resin.
本发明与现有技术相比，本发明由于加设有一层无毒聚乙烯碳酸钙降解料层，因此使本发明产品具有环保、可降解的功效的作用。
Compared with the prior art, the layer of nontoxic polyethylene calcium carbonate degrading material is arranged, and, therefore, the product is degradable and protects the environment.
以加拿大一厂址区碳酸盐岩含水层中地下水受到三氯乙烯（TCE）化合物的污染作为实例，对TCE的物理化学特性及其生物降解作用进行论述。
The physicochemical behavior of trichloroethene (TCE) and its biodegradation in a carbonate aquifer are studied, taking a case history as an example.
在制备方法上利用聚乙烯醇缩甲醛溶液高温析水的性质，直接加入高岭土、轻质碳酸钙制胶，简化了工艺。
By using property of separating out water at high temperature for polyvinyl alcohol formaldehyde solution, kaolin and light calcium carbonate can be directly added, and technique is simplified.
丙碳酸四氯乙烯加热的和叔胺或酰胺催化分解金额相同。
The tetrachloroethylene carbonate is decomposed by heating same with a catalytic amount of a tertiary amine or amide.
以不同用量的活性轻质碳酸钙填充发泡聚乙烯，通过力学性能的测试分析，研究活性轻质碳酸钙对发泡聚乙烯性能的影响。
The mechanical property of foam PE filled with different amount of activated light CaCO3 was investigated. The influence of activated light CaCO3 on foam PE was studied.
研究了活性轻质碳酸钙（活性钙）、聚乙烯蜡（PE蜡）、丙烯酸酯（ACR）用量对型材表面光亮度的影响。结果表明活性钙用量越多，型材表面光亮度越差；
The effects of the contents of activated light calcium carbonate, PE wax and acrylic ester(ACR) on the surface gloss of plastics profile shapes were studied.
产氧袋由聚氯乙烯薄膜制成，产氧剂为过碳酸钠。
The oxygen-generating bag is made of PVC plastic film, and the oxygen-generating powder is sodium carbonate peroxide.
在苯乙烯-丙烯酸无规共聚物的钠盐水溶液中合成了尺寸均一的球形碳酸钙复合物。
The spherical CaCO3 compounds with even size are synthesized in the sodium salt solution of the amphiphilic random copolymer of acrylic acid and styrene.
通过氧指数（OI）、烟密度等级（SDR）、热性能和力学性能的测定，研究了锡酸锌包覆碳酸钙阻燃剂对聚氯乙烯（PVC）电缆料性能的影响。
The effects of Zinc stannate coated CaCO3(ZSC-1) flame retardant on properties of PVC cable material were studied by the tests of OI, SDR, thermal property and mechanical property.
通过氧指数（OI）、烟密度等级（SDR）、热性能和力学性能的测定，研究了锡酸锌包覆碳酸钙阻燃剂对聚氯乙烯（PVC）电缆料性能的影响。
The effects of Zinc stannate coated CaCO3(ZSC-1) flame retardant on properties of PVC cable material were studied by the tests of OI, SDR, thermal property and mechanical property.
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