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- The drill has variable speed control. 这钻机有变速控制。
- Accelerator Non-contact continuously variable speed system. 无极变速系统。
- Independent variable speed drives on telescoping section. 套车部件的自变数速度驱动器。
- Variable speed is almost essential if drilling is to be accurate. 如果钻孔要精确，则可变速度是必不可少的。
- Contolled by microcomputer , displayed by LED , stepless variable speed . 采用微电脑控制，LED显示，无级调速。
- Adopt multi-function digital frequency inverter, and stepless variable speed. 采用多功能数显变频器，无级变速；
- Variable Speed Buffing Wheel: Another luxury for the serious clayer. 多速打磨轮：软陶爱好者的另一样奢侈品。
- In the slow speed motion approximation, we have obtained the equations of motion for two spherically-symmetric,non rotating bodies with the radiative force. 在本文中我们得到了慢速运动中两个球对称非旋转天体在辐射作用力影响下的运动方程。
- Coarse material is conveyed by a stream of air to variable speed whizzer-separator. 粗料由空气流输送到变速风力选粉机那里。
- Tongue shaped design vibrator. It comes with a powerful micro motor with variable speed control. 小圆点设计震动舌头：配备超静音微型强劲马达之无段变速按摩器。
- This article main explains method of plane reasonable arrangement and hight balance coordinate for tower cranes at building construction site.ensure satefy and high speed motion of tower cranes. 本文主要阐述了塔机机群在施工现场的平面合理布置和高度平衡协调方法,以确保塔机的安全、高效运行。
- Using importation system of infinitely variable speed,can adjust productional speed. 采用进口无级变速系统，可调节生产速度。
- An idea of design is provided for asynchronous m otor of variable frequency variable speed in this paper mainly. 本文主要为变频调速异步电动机的设计提供一条思路。
- For this reason, it has the absolute advantage to adopt the technique of variable speed constant frequency (VSCF). 为了提高风能的利用率,变速恒频(VSCF)风力发电技术有其绝对的优越性。
- The papers study the technology of variable speed drive in electric submergible pump. 本文主要论述了潜油电泵系统变频调速的应用技术。
- For variable speed drives, a speed set-point box should also be provided, with indicator of running current. 针对不同速度的驱动器，还应该提供带有当前运行指示器的速度置位点框。
- From those studies, we may know the variable speed drive in electric submergible pump is feasible and may run reliably. 根据以上的研究可知，潜油电泵系统采用变频调速是可行的，并且能可靠地运行。
- The VSCF (Variable Speed Constant Frequency) wind power generation is a new technology. 风速仿真是风力发电研究的重要手段之一。
- The loading capacity of the submergible motor in variable speed drive control process is analyzed. 对潜油电动机在变频调速的负载进行了分析；
- Adopt multi-function digital-indication frequency converter, and stepless variable speed. 采用多功能数显变频器，无级变速；
