mine total head 矿井通风兑压头 ; [矿业] 矿井通风总压头
total head gradient 总水头比降
total head tube [流] 总压头管
total-head orifice 总压头喷嘴
total head eficiency 总压头效率
total head line 总水头线
fan total head [机] 风机总压头
Net Head is derived from Total Head minus Head Losses.
净头是来自总目负水头损失。
This, of course, begs the questions: what is Total Head and what are Head Losses?
这当然,回避的问题:什么是总团长和水头损失是什么?
The head loss of flume is less, and the average loss is nearly 12% of the total head in upstream.
机翼形量水槽的水头损失较小,平均水头损失约占上游总水头的12%左右。
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