称杆的英文

scale arm

scale beam

weighing lever

• 称:    call
• 杆:    shaft; rod; bar
• 称杆调节器:    weight lever regul ...

例句与用法

1. When the beam drops down, a contact is made that causes the driving motor to move the rider in the direction that will balance the beam .
   当称杆失去平衡时就接通电路使驱动电机转动，并带动游码使称杆再得到平衡。