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n.
- 1. 干线,中继线
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网络例句
以下结果来自互联网
- a railway line connected to a trunk line.
一条连到主干线上的铁路线。 - a railway line that branches from the trunk line and then rejoins it later on.
一种从铁路干线分出来的后来又同干线会合的铁路线。 - Like any highway system, the federal airways have their main trunk line.
同任何公路系统一样，联邦航空线路也有其主航线。 - A main axis of a plant, such as the trunk of a spruce, that maintains a single line of growth, giving off lateral branches.
单轴植物的主轴，如云杉的树干，维持树木的生长并长出旁枝 - A test made to find out whether or not certain facilities which may be desired, such as a subscriber's line or trunk, are available for use.
一种查明希望的某些设施是否可供使用的测试，某些设施可以是用户线路或干线等。