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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Of course! Its light and easy to wield. Good with a shield.

当然了，因为轻便么，配合盾使用效果很好。

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Besides the effect and theme demands, it's recommended to shield hall from natural light.

除展示主题和效果的特殊需要外，原则上建议遮蔽自然光。

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Shadow Minister for Health Stephen O'Brien said the report shed light on the delayed and "ill-planned" NHS IT programme which the government had "constantly tried to shield from public scrutiny".

BBC: NEWS | Health | Major NHS IT upgrade hit by delay