Black specks in film or sheet-especially in light-colored or clear plastics-lead to scrap, unscheduled shutdowns, and dissatisfied customers.

薄膜或者片材上的黑点，特别是浅色或透明塑料，会导致废料、不必要的停机以及客户不满。

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Measuring with a compensator is a standard ASTM test procedure 2 and is a particularly effective laboratory tool for quality control of clear plastics.

测量与补偿器是一个标准的ASTM标准测试程序2，是一种特别有效的工具，实验室的质量控制明确塑料工业。

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He has believed for the past 20 years that the price of oil will eventually make petroleum-based plastics obsolete and clear the way for his alternative.

二十年来，他一直相信，石油的价格最终会淘汰以石油为原料的塑料，为他的替代品扫清道路。

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But its biggest and most controversial application is as a hardener for making polycarbonate plastics and epoxy resins the materials of choice for manufacturing clear, shatter-proof bottles, spectacles, medical devices and CDs as well as dental coatings and linings for food cans.

ECONOMIST: The plastics industry��s Pyrrhic victory