large displacement and rotation
Large Displacement Expansion Joint
Large displacement of circular plates
Maintainability of large pump units
constant displacement pump
double displacement pump
eyword: Variable displacement pump
fixed displacement pump
mercury displacement pump
positive displacement pump
容积式泵
正排量泵
容积式真空泵
正排量式泵
排量式泵
正置换型泵
阳性金属
容积泵
rotary displacement pump
screw displacement pump
variable displacement pump
可变排量泵
变量泵
变量柱塞泵
变排量泵
比例变量泵
可变容积泵
恒动率变量泵
可调流量泵
Variable displacement pump of constant pres sure