A force exerted by media on detecting device balances pre-tightening force of preset spring 3.
介质在检测元件上产生一个作用力与预设弹簧(3)预紧力相平衡。
2
By measuring the swing cycles and balances of the body on the four spring handstand equipment, we can determine not only the inertial moment and products of the body, but also the center of mass.