EEC指令规定的安全目标应适用于机械。
Thee safety objectives set out in Directive 73/23/EEC shall apply to machinery.
似乎有一些观点是适用于机械，电子和系统工程的。
It seems like some of them apply to mechanical, electrical and system engineering.
本标准适用于机械结构、一般工程结构用无缝钢管。
This standard applies to rigid structure, average project construction to use seamless steel tube.
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