When any steam enters into the inverted bucket, the bucket will obtain buoyancy and the fixedlever of the bucket drives the valve core to close the valve.
当蒸汽进入倒吊桶内，倒吊桶产生向上浮力，倒吊桶连接杠杆带动阀芯关闭阀门。
2
The rollers are carried by an L - shaped lever, fixed to a horizontal shaft, which also carries short arms to which the reed and gripper guides are fixed.
转子装在l形杆上，l形杆固定在水平轴上。在水平轴上还装有短臂，钢筘和导梭片就装在短臂上。
3
The expressions of lever coefficients are obtained according to four factors of the sales volume, unit gross profit, period fixed cost, interest in the different conditions.