研制了一种以自由端带有集中质量的悬臂式压电双晶片为驱动单元、具有移动和旋转二自由度的惯性冲击式精密驱动器。
A new precise actuator with 2 degrees of freedom for translational and rotational motions actuated by the impact force of an end-loaded piezoelectric bimorph cantilever was proposed.
当旋转标本，发现长石解理面上出现一半反光，一半不反光时，此即为卡斯巴双晶；
When the rotation were found on the cleavage plane appear half reflecting feldspar, half are not reflective, this is when a white reflective Carlsbad twin;
将标本向不同方向旋转，直到用野外或放大镜看到晶面或解理面上出现一组平行的明暗相间的直线或折线，这就是双晶纹。
The specimen with different direction, with the field or a magnifying glass to see a group of parallel dark and straight line or a line or plane appears on the cleavage plane until it is twin.
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