其实不然，一旦触及移民问题，他们便齐齐反向用力—最大限度地将世界上最优秀最具才智的人挡在美国门外。

But when it comes to immigration they are doing exactly the opposite-trying their best to keep the world's best and brightest from darkening America's doors.

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通过分析转向过程中采矿车与海底底质的作用力关系，建立了采矿车在海底斜坡转向的运动学模型，设计了以最优控制器为核心的转向控制系统。

Secondly, the mining vehicle's kinematic model is deduced as driving on the slope. Finally, the optimal steering controller is designed as a key determinant of the turning control system.

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