Since the Moon always presents the same face to Earth as the result of "tidal locking", direct communication links with devices on the lunar surface can be maintained continuously.
由于“潮汐锁定”的作用，月球总是以同一个侧面对着地球，这样，设立在月球表面的通信设施就可以与地球保持不间断的直接联系。
Adjust the width of box plus locking handle with slide, adjust the width of face punching plug - chip regulator is used to ensure the piercing has always been at the center position.
盒体宽度的调节采用滑槽加锁紧手柄，冲孔面的宽度调节则采用塞片调节，保证冲孔始终在中心位。
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