-
目前使用广泛的双作用叶片泵存在着较大的能量浪费；
The double action vane pump using extensively at present has great energy waste;
youdao
-
双作用式变量叶片泵是一种新型变量泵。
The double-acting variable-vane pump is a new type of variable pump.
youdao
-
双作用式变量叶片泵是一种新型变量泵。
The double-acting variable-vane pump is a new type of variable pump.
youdao