为此，用手摸到底钩，然后转动六角体上部，直至底钩锁止。
To do this feel for the bottom hook by hand and twist the upper hexagon until the bottom hook is locked.
夹持机构含有结构件主体（1）和通 过弹性连接的结构件（2），其中结构件主体（1）与附加镜片相连， 结构件（2）设有至少一个通过机械运动夹持底镜中梁的所述机械夹 钩。
The organization includes the principal part1, the part2 that is connected to part1 by elasticity. The part1 is linked with the additional lens, and the part2 has at least one clip mentioned above.
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