vacant line

基本解釋

• [電子、通信與自動(dòng)控制技術(shù)]空閑行

英漢例句

雙語(yǔ)例句

• A plausible reason is that all the dinosaurs had been killed off, except the line that evolved into birds, and the placental mammals speciated into the ecological niches that had been left vacant.
  一個(gè)可能的原因是所有恐龍除進(jìn)化為鳥的一支外都死掉了，胎盤類哺乳動(dòng)物才在被空閑出來(lái)的生態(tài)龕中得以進(jìn)化。

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詞組短語(yǔ)

短語(yǔ)

• vacant charge line 空料線
• line of vacant sites 空位線

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專業(yè)釋義

電子、通信與自動(dòng)控制技術(shù)

• 空閑行