Maximum pressure differential required for valves with lever actuators should not exceed the limits listed.

采用杠杆执行器要求阀门的最大压差不能超过下表所列的极限。

youdao

The differential rent of urban land is the lever to adjust the urban land makes use of the types space structure.

城市土地级差地租是调节城市用地类型空间结构的杠杆。

youdao