track locking 中文意思是什麼
track locking
解釋
進路鎖閉-
Railway applications - track - switches and crossings - part 4 : actuation, locking and detection ; german version en 13232 - 4 : 2005
鐵路設施.軌道.鐵路側線和道岔口.第4部分:驅動鎖緊 -
Approach locking track circuit
接近鎖閉軌道電路
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