frost的医药专业中文词条翻译 ... eternal frost climate 释义：永冻气候 waterelon frost lozenges 释义：西瓜霜润喉片 frost self-description questionnaire 释义：弗罗斯特自述问卷 ...
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Normally, the cumulated water in top cover is drained to cumulated water well by gravity drainage, in emergency situation, the water would be drained by the self-priming pump installed in gallery.
顶盖内积水正常情况下通过自流排水排至积水井，紧急状态下通过装在廊道内的自吸泵排水。
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