上部和下部走线通道均可关闭。
Both the upper and the lower cable laying channels can be closed.
上部和下部温控器必须调节在相同的温度。
Upper and lower thermostats must be adjusted to the same temperature.
排水立管的上部和下部都存在正压和负压。
Positive and negative pressure existed in the upper and lower drainage pipes.
用扳手抓住上部和下部阀杆锁紧螺母并且松开。
上部和下部衬套符合流畅平稳轻松操作阀门的标准要求。
Upper and lower bushings are standard for smooth valve operation.
你可以认为它们之间的连接这些肌肉的上部和下部的机构。
You may think that the connection between them, these muscles the upper and lower body.
车身有两个基本部分-车身上部和车身下部。
The automobile body has two basic parts-the upper body and the under body.
车身有两个基本部分-车身上部和车身下部。
The automobile body has two basic parts-the upper body and the under body.
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