back-up shaft

基本解释

• [交通運輸工程]支持輥輥軸

英汉例句

雙語例句

• Rescuers said they would resume drilling a separate shaft as a back-up plan in case of problems with the first one.
  救援人員稱，作爲備用他們將會重新開鑽另一口竪井，以防第一口竪井出現問題。
• A blast of hot air from the shaft then blew Lightoller back to the surface of the water. He was pulled under again, this time resurfacing by a up-turned lifeboat.
  軸承散發出的猛烈的熱浪又將他推出海麪，隨後他又被渦流吸入，而再一次地被一艘繙轉的救生艇帶了上來。

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专业释义

交通運輸工程

• 支持輥輥軸