道热损失 heat pipeline: 热网管线head loss of pipeline: 管线水头损失heat loss: 耗热量; 热耗; 热量损耗; 热损耗,失热; 热损失;散失的热量; 热消耗; 散热loss heat: 损失热loss of heat: 热损失; 散热; 失热下载手机词典可随时随地查词查翻译