This illustrates that this nonlinear PID control scheme can solve the trajectory control problem of underwater self running vehicle effectively.

说明非线性PID控制方案较好地解决了空投入水自航器的航迹控制问题。

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As for a propeller of a tugboat, it is necessary to calculate the fatigue strength in the self running state as well as the static strength in the bollard state.

对拖船螺旋桨来说，除了应计算系桩状态的静态强度外，还应计算自由航行状态的疲劳强度。

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For experienced ultra-runners the challenge of self-sufficient running in the extreme heat of the Sahara is too good to ignore.

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Similarly, if you are self employed or running a furnished holiday letting business and you are using a room at home as an office, it should be possible to claim a tax deduction for some of the house running expenses such as heat, light, business use of telephone, painting and decorating, etc.

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Many Americans are now self-employed, running businesses out of their homes and they struggle to buy health insurance.

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