upward ventilation英语标准发音:upward ventilation英式发音:美式发音:翻译中文向上通风upward ventilation - 基本释义[词典1]向上通风上向通风upward ventilation - WEB词典upward ventilation向上通风上向通风上向通风upward displacement ventilation上置置换通风upward ventilation WESTBANK向上通风 参考资料: 1.百度翻译:upward ventilation2.有道词典:upward ventilation3.爱词霸:upward ventilation