选择云台的几个要点，云台的运动是否平滑，云台的安全承重量，是否配置快装板。
The key points to remember when selecting a head are how smoothly it moves, how much weight it can safely support and whether it has a quick release plate.
补液泵的结构振动会影响补液的平滑性，本文对一台日本KM—30型补液泵进行了结构的随机振动谱分析。
The structure vibration of make-up pump has influence on the flow smoothness of fluid. The spectral analysis of random vibration for a Japanese make-up pump model KM-30 has been carried out.
非常小心地限制移动工作台的运动，使其在干净、平滑、水平固定的表面上运动。
Use extreme care and restrict the movement of portable Banks to localize movement on clean, smooth, level stationary surfaces.
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