这种类型的阀门不需要外置执行器，只需要气压或水压即可操作。
This style of valve needs no outside actuator and operates on air or water pressure alone.
该现场监测单元采用了PC总线接插板技术，内部配有多种类型的数据采集卡，能兼容较多类型的传感器、执行器和智能仪器；
The LMU based on PC bus technology contains many data acquisition cards compatible with many kinds of sensors, performers and intelligent instruments.
介绍了MEMS的特点、特征、技术发展趋势，MEMS器件的类型及其功能，并以多层弯曲磁芯结构微执行器为例介绍了磁驱动微执行器工作原理与制作工艺过程。
In this paper, the feature and the development trend of the MEMS technology are introduced. And the operational principles and the fabrication craft of the magnetic micro-actuator with a mult...
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