在线词典--水电知识网--中国水利水电出版社 ... output loss 出力损失 pipe-line loss 管道[水头]损失 Pitot loss 总压损失 ...
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pipe line loss 管道水头损失
This air valve is automatic device, it can exhaust air in the pipe line to reduce energy loss of system.
本阀属于自动阀类，能自动排除管路内的气体，减少管路系统的能量损失。
Ball has good thermal insulation cold insulation properties, the valve diameter the diameter line pipe in the same time reduce medium heat loss.
保温球阀具有良好的保温保冷特性，且阀门的通径与管径一致，同时又能有效降低管路中介质热量损失。
Ball has good thermal insulation cold insulation properties, and the valve diameter and the diameter line pipe in the same time reduce medium heat loss.
保温球阀具有良好的保温保冷特性，且阀门的通径与管径一致，同时又能有效降低管路中介质热量损失。
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