1·Other materials, such as sulfuric acid, caustic soda and ethanediol, can be purchased form the factory nearby.
聚甲醛生产中其他原料如硫酸、烧碱和乙二醇可在周边生产厂家采购。
2·WZ405 coolant detector is used to simply measure the density and freezing point of ethylene and ethanediol in antifreezing fluid or coolant.
用来简易的测量防冻液或冷却剂中乙烯、乙二醇浓度及其冰点。
3·Thep-benzoquinone was oxidized to open the ring and formed other intermittent products such as butanol, butanone, propanoic acid and ethanediol.
对苯醌开环后，进一步被氧化，中间会生成丁醇、丁酮、丙醇、乙二醇等。
4·Effects of time, order of adding reagents, contents of ethanediol, silver nitrate, acid copper plating bath and nitrate on scattering intensity of resonance light were studied.
讨论了乙二醇用量、硝酸银用量、酸性镀铜液(底液)用量、硝酸用量、时间及试剂加入顺序对共振光散射强度的影响。