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Previous studies have shown that sericin extracted from silk cocoon significantly reduces blood glucose levels and prote......

通过对4MG200－W1采煤机截割部I轴进行改进，解决了螺旋锥齿轮因楔紧而损坏的问题。...

摘要：通过改变车床I轴与分油环之间的密封方式，防止因磨损过度而导致的液压油泄露，保证机床的正常运行。......