英语词汇“main trunk line”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	main trunk line
释义	main trunk line 基本例句主要干线管路 Like any highway system, the federal airways have theirmain trunk line.同任何公路系统一样，联邦航空线路也有其主航线。
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