The air exhauster has diffusion pipe, mixing chamber and exhaust pipe successively.
本抽气器内顺次设置扩散管、混合室、排气管。
Use of exhaust dynamic efficiency and improvement of the diffusion pipe structure are conductive to lifting the engine performance.
应用排气动力效应通过改善扩散管结构，可使整机性能显著提高。
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。
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