You need to set your focus to infinity. Try focusing on a stable object in the distance.

你要把焦点设为无穷远，对准远处一处固定物对焦。

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Record its sailing time, distance while the vessel accelerate from stationary state to stable design route speed.

船自静止状态加速至稳定的设计航行速度，记录其航行时间、距离。

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Based on the definition of norms in continuous function Spaces, a concept of distance between the operation state and the post-fault stable equilibrium state is suggested.

根据连续函数空间范数的定义，提出了电力系统运行状态与故障后稳定平衡状态之间距离的概念。

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Money should be stable in value, just as measurements of distance or time are stable.

FORBES: Who Woulda Thunk

Despite all the complaints, average commuting time remained stable through the 1990s, but the average distance travelled grew.

ECONOMIST: Road-pricing in California