Keep the occupational-disease-inductive accident site under control. 组织控制职业病危害事故现场。
This paper from the control of organization describes the fisability for much improvement of the toughness of the electro-slag welds. 本文从组织控制的角度论述了较大幅度地提高电渣焊缝冲击韧性的可行性。
Control of Mierostrueture怎么读 Control of Mierostrueture是什么意思