起升速度与小车运行速度的增加，提高了搬运效率。
The increase of lifting speed and trolley travelling speed have raised handling efficiency.
常规机械式修井机每一档下的管柱起升速度为常量。
The tubing string lifting velocity of the conventional mechanic rig under each particular gear is constant.
除了标准起升速度外，还有多种速度可供选择，也可选用变频控制起升。
There are many optional speed levels and frequency control lifting except the standard speed.
1990年，人口飞速上升到600000，自1990年起，人口的增长持续，但上升速度相对较慢。
The population rose rapidly until it reached 600 000 in 1990. Since 1990 the growth has continued but the population has risen relatively slowly.
该安全阀使叉车或起重机的起升液压驱动回路既有高效率的上升速度，又有可靠的安全下降速度。
The safety valve can make the lifting fluid-pressure drive circuit of a fork lift truck or a crane obtain not only high efficiency ascending speed, but also reliable and safe descending speed.
该安全阀使叉车或起重机的起升液压驱动回路既有高效率的上升速度，又有可靠的安全下降速度。
The safety valve can make the lifting fluid-pressure drive circuit of a fork lift truck or a crane obtain not only high efficiency ascending speed, but also reliable and safe descending speed.
应用推荐