对于活动铅笔有一个匹配的平稳旋转动作圆珠笔。
To the propelling pencil there is a matching ballpoint pen with a smooth rotary action.
使用气油转换装置，梭动工作台带动工件平稳旋转烫印，烫印质量稳定。
Equiped with gasolene changeover gear and shuttle worktable ensure the stamping quality.
这些卫星处在平稳旋转的地球上空，几乎可以对全球的所有地区进行稳定的扫描，因此能很好地完成气象观察、通讯以及其它任务。
Such satellites—maintaining their steady sweeps as the earth revolves beneath them—cover all parts of the globe and hence are ideal for weather observation, communications and other tasks.
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