并具有踏板定位装置和踏板位置指示装置。
Besides, it is equipped with a pedal-positioning device and a pedal position indicating device.
这个装置的正面有个刻度盘，盘上至少有三根指针，一根用来指示日期，其余两根用来表示太阳和月亮的位置。
A dial on the front of the device probably carried at least three hands, one indicating the date and the other two indicating the positions of the Sun and the Moon.
当阀门处于远程时，位置指示器可用于微动开关接触装置。
On valves controlled remotely, the position indicators may be used for microswitch contact.
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