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- polyether sulfides 聚醚硫化物
- Polyether types of polyurethane rubber. 聚醚多元醇与二异氰酸酯类化合物聚合制得的橡胶。
- The effect of sulfides and aromatics wit... 不同的化合物混合对柴油润滑性的影响不同。
- Ph, Zn and Cu sulfides are the henoboer minerals of silver. 铅、锌、铜的硫化物是银的主要载体矿物;
- Any of various shiny minerals composed chiefly of metallic sulfides. 闪锌矿一种主要由含金属硫化盐组成的闪光矿物
- A raw rubber for millable polyether polyurethane elastomer was prepared. 研制了一种新型的聚醚型聚氨酯生胶。
- Polyether diol mainly adopts polytetramethylene ether glycol (PTMEG). 聚醚二醇主要采用聚四氢呋喃醚二醇(PTMEG)。
- The soluble sulfides are unstable,while the stable sulfides are unsolvable. 可溶的硫化物都不稳定,稳定的硫化物都不可溶。
- The most important exothermal reactions in the crust can be expected from the chemical transformations of sulfides. 地壳中能够料想到的最重要的放热化学反应是硫化物的化学转变。
- Objective To explore the technique of the cooperation of nursing in auto-mixed polyether rubber impressions applying. 目的:探讨临床应用自动混合型聚醚橡胶制取印模时护理配合技巧。
- Studies of CFC-free formulation for flexible polyether PU foam is described in this paper. 本文介绍聚醚型软质聚氨酯泡沫塑料无氟氯烃配方的研究.
- Cu-Fe-Ni sulfides are disseminated both in the core of titaniferous iron ore and in the diallagite pegmatoid. Cu-Fe-Ni硫化物星散分布于钛磁铁矿核心部分以及易剥辉石似佛晶岩中。
- A myriad of co-oligomers is possible: epoxy, urethane, polyester, polyether, amine and combinations are available. 它具有多种改性低聚体:环氧类、聚氨酯类、聚酯类、聚醚类和胺改性的。
- Carbon steel -- Very good mechanical properties; good resistance to stress corrosion and sulfides. 碳钢--具有很好的机械特性;良好的抗金属超应力腐蚀的能力和抗硫化物腐蚀的能力。
- As for polyether PUA, Darcocur 4265 is preferred, and curing rate is fastest when neutralization degree is 80%. 在光固化性能方面,对于聚醚型PUA优选Darocur 4265,中和度为80%25时光固化速度最快;
- Cu-Fe-Ni sulfides are disseminated both in the core of titaniferous iron ore and in some other rocks. Cu-Fe-Ni硫化物星散分布于钛磁铁矿核心部分以及其他几种岩石中。
- With the compounding of polyether glycol and triol, the foam sealant can get good allround properties. 聚醚二醇和聚醚三醇复配使用,可制得综合性能良好的单组分聚氨酯泡沫胶体系。
- A process of purifying polyether polyols with high activity and low unsaturated degree was studied. 对高活性低不饱和度聚醚多元醇的精制进行了研究。
- Catalysis: Development of chirometallopor-phyrins as enantioselective oxidation catalysts of alkenes and sulfides. 催化作用:开发新型手性金属催化烯类及硫醚类之对映选择性氧化。
- They found that it was composed of various aromatic compounds and sulfides in addition to large quantities of carbon. 他们发现原来它的组成除了大量的碳,还有各类芳香族化合物和硫化物。