For big aperture's precision photolithographic plate-making lenses, the stress distortion and centering errors of lenses can make a bad effect on imaging quality.

对于大口径精密投影光刻制版镜头来说，透镜的应力变形和中心误差对整个系统的成像质量有较大影响。

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Heel seat plate rotation with swinging movement according to the shoe shape and to the toe centering.

后踵热板根据鞋的开头以鞋腹地为中心旋转。

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The complete set move and wire on the ground rail together with the cable plate, realized the wire drawn-in or lay-out centering, cable does not curl and distortion breadthwise;

整机连同缆盘在地轨上行走排线，实现了线缆对中收排、防线，电缆不产生横向弯曲变形；

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