The electrical property of flame-retardant engineering plastics, especially comparative tracking index (CTI) is described.
这对阻燃型工程塑料的电性能，尤其是比较跟踪指数（CTI）进行了描述。
Polymerized with suitable methods, additional polymer optical plastics with different functions, especially with high refractive index, can be obtained.
这些单体通过适当的方式聚合后，可得到具有各种功能尤其是高折射率的加聚型聚合物光学塑料。
Results To kill bacteria by using 3M paper plastics package, the biochemical index reach the standard, the sterilization period of validity is above half year.
结果应用3M纸塑包装袋包装灭菌，生物、化学监测均达标，其无菌有效期可达半年以上。
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