Discusses the conditional tests for the determination of calcium content in the plastic knitted sack and its packing material, and establishes a reliable analytical method.
讨论塑料编织袋及其填充材料中钙测定的条件试验，建立了可靠的分析方法。
This study used as a modifier of calcium sulfate, NBS for toughener, HIPS as the theme of plastic polymer composites.
本研究采用以硫酸钙为改性剂，NBS为增韧剂，HIPS为主题塑料组成高分子复合材料。
Quartz floor tile is a new type of decorating floor covering tile while calcium-plastic floor tile is one of the old plastic floor covering tiles.
石英地板是塑料地面装饰块材新品种。钙塑地板则是塑料地面装饰块材老品种。
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