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。
2
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。
3
The lever type differential adjustment can be made by hand or by foot to make the operation simply and freely. it is capable for sewing various flexible fabrics.