In the experiment of liquid viscosity measured by rotarycolumn method, the uniform drop time and distance are calculated theoretically.
通过理论计算得到了“转柱法测液体粘度”实验中砝码下落达到匀速所需要的时间和运动距离。
2
A limit latch is placed inside the upper part of the lock body, and a hanger column corresponding to the limit latch is placed on one side of the rotary disc of the rotary claw.
在所述的锁体上部内设有限位挂钩，在转动卡爪的转盘一侧设有与限位挂钩 对应的挂柱；
3
The utility model relates to a rotary-vane vacuum pump, which provides a column spiral torsional spring which is used for replacing a column spiral compressing spring.