pitch fibre pipe 沥青纤维管
pitch of pipe 管坡度
pitch fibre pipe west bank 沥青纤维管
pitch of organ pipe stop [轻] 风琴管音栓的栓距
Pitch Fibre Pipe Association 树脂纤维管协会
pitch of organ pipe stops 风琴管音栓的栓距
以上来源于: WordNet
N a small pipe, esp one having a reed like a harmonica, that sounds a note or notes of standard frequency. It is used for establishing the correct starting note for unaccompanied singing 律管
You can be the pitch pipe for your choir, and easily tune string or wind instruments.
你能成为你合唱队的调音器并轻松地调准各种管弦乐器。
The drain pipe must be the same size as the valve outlet, and must pitch downward from the valve.
排泄管与安全阀出口必须有相同的通径，必须从安全阀开始垂直向下。
Both have the same pitch diameter at the top of the hole of internal threads or end of the pipe on external threads, and both have the same thread lengths or depths.
在内螺纹的孔的顶端或者外螺纹的管的端部拥有相同的中径，而且拥有相同的螺纹长度和深度。
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