railroad jack 中文意思是什麼
railroad jack
解釋
鐵路舉重器-
Supporting them were grenville dodge, a union general who was the chief engineer of the union pacific and could be called america ' s greatest railroad - builder ; jack and dan casement, who were also generals during the war and then the heads of construction for the line ; and many engineers and foremen, all veterans, who made it happen
作為三人有力的支持，又有：被稱作美國最偉大的鐵路建設者的，聯合太平洋鐵路的首席工程師? ?格倫維爾?道奇將軍；負責鐵路建設的傑克?凱斯門特和丹?凱斯門特，兩位也曾是戰時的將軍；為此效力的，還有許許多多的工程師和工頭，以及所有的退伍軍人。
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