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The cutter of the coal mining machine bears dynamic load varying with time during excavating coal.
采煤机截齿截割煤体时，截齿承受随时间而变化的动载荷。
youdao
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The cutter of the coal mining machine bears dynamic load varying with time during excavating coal.
采煤机截齿截割煤体时，截齿承受随时间而变化的动载荷。
youdao