pump inlet head 泵入口压头

inlet velocity head 入口速度压头 ; 进口速度头

cylinder head oil inlet 汽缸盖进油口

inlet total head 入口总水头

cylinder head inlet port 缸盖进口孔

loss of head at Inlet 入口总水头损失

fuel head inlet union 进油管接头

fuel head inlet fitting 燃油进口接头

head of inlet loss 进口水头损失