The ground potential unit includes a pair of conductors (13/14) formed in a tapered shape on the front and the rear surface of the dielectric substrate and mutually capacity-coupled.
接地电位单元 包括在介质衬底的前表面和后表面上以楔形形状形成的并且相互电容性地 耦合的导体对（13，14）。
The arms can be driven rotatingly in mutually synchronous manner, each by its own motor, which motors are coupled in a master-slave connection.
臂可被 驱动以相互同步的方式旋转，其中每一个臂由它自己的马达驱动，这 些马达以主从连接关系结合在一起。
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