释义 |
1 ?大小头接管 大小头接管(transition pipe), 此释义来源于网络辞典。
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Lower manhole, smoke vent, cold-blast inlet, transition pipe, telescoping pipeline, etc. - 2
From inner to outside, the composite pipe consisted of alumina ceramic layer, metal transition layer, white cast layer, carbon atom diffusion layer and nodular cast iron layer. 复合管从里到外由氧化铝陶瓷层、金属过渡层、白口铸铁层、碳原子扩散层、球墨铸铁层组成。 - 3
Duct branch is rich in natural form of uniform distribution, wall smooth, branch pipe and tube diameter on the transition to a flat. 导管分支丰富,形态自然,分布均匀,管壁光滑,分支导管与上一级导管管径过渡平缓。
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