调节弹簧 meaning in English

adjusting spring
regulating spring
regulation spring
regulator spring

4 . adjust the spring leaf for a horizontal plane after paving all ceiling tiling squares
4将格栅天花连接后，通过调节弹簧调至即可。
As the pressure on diaphragm ( 8 ) approaches a balance with the force exerted by adjusting spring ( 5 ) , disc ( 20 ) is throttled to a position where just enough water flows to maintain the set delivery pressure
当隔膜( 8 )上的压力接近等于调节弹簧( 5 )的弹簧力时，阀瓣( 20 )就进行节流状态，使得刚好有足够的水流来保持设置的输出压力。