sleeper-layer 中文意思是什麼
sleeper-layer
解釋
軌枕鋪設機-
The essential cause that induces subway vibration is the inter action between the train ’ s wheels and rail. through the sleeper, ballast bed, roadbed and soil layer, the vibration spread to far place
地鐵振動產生的根本原因是由於輪軌的相互作用,再通過軌枕、道床、路基和土層依次向遠處傳播。
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