First, the essential difference and similarity between strap-down stabilizing method and rate-gyro method was discussed.

首先分析了捷联稳定和陀螺稳定的本质区别与联系；

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A linewidth stabilizing method for defocusing laser direct writing is proposed for further improvement of line quality of diffractive optical elements.

为了提高激光直写加工衍射光学元件时的线条质量，提出一种离焦激光直写的线宽稳定方法。

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This invention also relates to a light stabilizing method for at least one dibenzoylmethane derivative with effective amounts of at least one dithiolane compound (I).

本发明还涉及用有效量的至少一种式（I）二硫杂环戊烷化合物使至少一种二苯甲酰甲烷衍生物对辐射光稳定化的方法。

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