Two kinds of light-shield agents of ZnO and carbon black were used to improve the ageing-resistance of polyacetal(POM).

采用炭黑和氧化锌两种光屏蔽剂对共聚甲醛进行耐老化改性。

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An included black fabric attachment can be used to shield light away from your subject.

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You'll have to shield the photo from the light for a bit to ensure that it comes out properly.

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When they were silent in the pause at a traffic light, her father touched the open shield of his palm to the back of her head, the unobtrusive caress he had offered when driving her to boarding school.

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