When operation, the electric motor spurs the chief axis and turbine vertiginate on.
操作时，电机带动主轴及涡轮高速旋转。
Chief axis is mainly parts of lifting machine, and it is very necessary to design on failsafe design.
主轴是提升机的主要部件，对其进行可靠性设计很有必要。
Telecentric lens has parallel chief ray with its optical axis and is ideal for co-axial lighting.
远心镜头拥有与它的光轴平行的主光线，同轴照明是非常理想的。
Telecentric lens has parallel chief ray with its optical axis and is ideal for co-axial lighting.
远心镜头拥有与它的光轴平行的主光线，同轴照明是非常理想的。
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