position indicating switch
... 阀位指示开关position indicating switch. ; 增强器boaster 气锁阀血lock ...
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The switch position of butterfly disc is limited by the adjusting screw pole on the worm gear transmission device. The indicating device displays the position of the valve switch.
蝶板的开关位置都由蜗轮传动装置上的调节螺杆限位,指示牌指示阀的开关位置。
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