基本解释补气管；排污管；放水管英汉例句双语例句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。blowdown pipe更多例句词组短语短语blowdown n pipe 排污管;放水管blowdown pipe insulation 排污管blowdown pipe更多词组