Urban mass transit (UMT) quasi-moving block CAD software is a block design CAD which can dispose _ signal equipment automatically based on the quasi-moving principle.是什么意思_Urban mass transit (UMT) quasi-moving block CAD software is a block design CAD which can dispose _ signal equipment automatically based on the quasi-moving principle.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句