这种现象的出现是学校管理体系和社会环境双重作用的结果。
Such phenomenon is the result of dual function of the college management system and the social environment.
焊缝成型的变化是电弧收缩与表面张力变化双重作用的结果。
The transformation of weld forming is the results of dual functions of arc shrink and surface tension change.
本文论述了一种在铝合金中同时具有除镁和精炼双重作用的熔剂。
This paper recommended a kind of agent of fusion and it's adding technolgy, which had double actions of depressing magnesium content and refining in molten aluminium alloy.
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