balance arm造句怎麼寫

Balance weight block installation position is not accurate, will cause the boom and the balance arm balance torque deviation is too large, easily lead to instability of the tower crane.

Balance arm:After going into nuptial chamber, the bridegroom picks with the balance arm the bride's red lid, take an idea"gratifying and satisfactory".

The loading of balance arm is distributed averagely, which improve the operating stability.

The elongated structure, such as a boom, the balance arm, can be in the oral suspension, determine reasonable hanging point.