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。
Centred on thermal radiation, noise and diffusion, the basic design principle and method of gas blowdown sound pipe are described in derail.
围绕热辐射、噪声和扩散详述了天然气放空立管的基本设计原则和方法。
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。
Oil gas diffusion can probably occur from the product pipeline due to some factors such as pipe corrosion, foreign power collision, oil stolen by drilling hole or water hammer.
成品油管线在运营过程中会发生泄漏，主要原因为管线腐蚀、外力撞击、打孔盗油及水击等，泄漏后油品蒸发扩散形成的爆炸性区域具有很大的危险。
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。
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。
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