Under the control of the Sun's gravitational force, each planet maintains an elliptical orbit and all of them travel in the same direction.

在太阳引力的控制下，每个行星都维持在一条椭圆形的轨道上，并按照相同的方向移动。

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The results showed that the proposal can not only control the direction and value of rotary steering force effectively, but it has a simple structure and high reliability.

作者认为，这种导向工具设计方案不但能够实现旋转导向力方向和大小的有效控制，而且结构简单，可靠性好。

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The results show that this kind of steering tool can not only realize the control of the magnitude and direction of the bias force, but also is simple in structure and high in reliability.

结果表明，这种导向工具设计方案不但能够实现旋转导向力方向和大小的有效控制，而且结构简单，可靠性好。

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They will have the power to hire and fire chief constables and set local police objectives and the budget - but chief constables will remain in charge of the direction and control of the police force.

BBC: Peers reject delay to police chief elections

PPCs will have the power to hire and fire chief constables and set local police objectives and the budget - but chief constables will remain in charge of the direction and control of the police force.

BBC: Police Reform Bill: Consideration of Lords' amendments

These commissioners will have the power to hire and fire chief constables and set local police objectives and the budget - but chief constables will remain in charge of the direction and control of the police force.

BBC: Call for councils to have closer relationship with PCCs