The last few minutes before going on stage always screw new actors up.
上台前的最后几分钟常常使新演员紧张得很。
Driven by a brushless servo or stepper motor with a precision ground ball screw, this motorized stage offers high-resolution up to 0.1 micron.
由无刷伺服或带有一个精密的地面滚珠螺杆的步进电机驱动，这种机动化阶段提供达0.1微米的高分辨率。
These units feature a single stage oil flooded rotary screw for increased productivity at reduced operating costs, and they're skid mounted for permanent installations.
这些组件配有单级旋转螺杆有助于降低运营成本，提高生产率，这些产品为滑动底板安装。
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