[問題] 什麼是雙軌化?
各位大大好
最近前瞻計劃裡很常提到哪裡哪裡雙軌化
但到底什麼是雙軌化?
一個車站一定有上行軌道和下行軌道
雙軌化是說這個車站再增加一個上行軌道和一個下行軌道嗎?
所以總共有四條軌道?
不知這樣理解有錯嗎?
麻煩各位大大了,謝謝!!
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感謝各位大大的回應,我己經知道了,謝謝!!
※ 編輯: dhand (114.25.230.8), 09/07/2017 00:20:48
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