bed type support 中文意思是什麼
bed type support
解釋
平板型支架-
The low cost track, which consists of the traditional wide - sleeper tack, ballast bed with rubber bits and the elastic packing material between sleepers, is a new type with three - dimensional elasitic support
摘要介紹以傳統的寬枕軌道框架、碎橡膠道床、枕端無遮擋彈性定位和枕間彈性材料密封裝配成的,具有三維彈性支撐的碎橡膠道床軌道。
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