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求關(guān)于螺栓松動的試驗(yàn)方案,,急! |
評分
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點(diǎn)評
實(shí)驗(yàn)螺栓各種性能,,比如道軌螺栓,跑什么速度會松,?松一個就是驚天大禍,,
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點(diǎn)評
能精確設(shè)定的,就可以,,
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