光轴 meaning in English

[光学] optic axis; optical axis; principal axis; ray axis
◇光轴计 axometer

Crystals of this type, having only one optic axis, are called uniaxial crystals .
这种只有一根光轴的晶体称为单轴晶体。
Be aware as well that these transforms are centered about the zero-frequency optical axis of the system .
还要记住这些变换式是以系统的光轴（频率为零）为中心的。
Drive operating on the rotating shaft with standstill
停机旋转光轴上运行的驱动器
Light axis stabilization of half - strapdown seeker
半捷联导引头光轴稳定的研究
Optimum ratio between the bobbin and the shaft speeds
绕线筒与光轴最佳速度比

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