轉(zhuǎn)發(fā)自:科學(xué)論壇ISCIENCE FORUM
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作者:楊昌林
南車株洲電力機(jī)車有限公司湖南株洲412001
卸料九推件力的計(jì)算及壓力機(jī)的初選
其中:L一一沖切...
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