Negative coefficients occur where there is a decrease in acoustic impedance across the reflecting interface.
当反射界面上下两侧的声波组抗降低时，反射系数就会出现负值。
Returns an array containing field objects reflecting all the accessible public fields of the class or interface represented by this class object.
返回一field对象数组，映射该Class对象表示的类或接口中的所有可访问公共域。
Returns an array of method objects reflecting all the methods declared by the class or interface represented by this class object.
返回一method对象数组，映射该Class对象表示的类或接口中声明的所有方法。
Returns an array of field objects reflecting all the fields declared by the class or interface represented by this class object.
返回一field对象数组，映射该Class对象表示的类或接口中声明的所有域。
This paper mainly reviews three most important elements in a telepresence system: a force-reflecting manual controller, a virtual reality unit and an advanced operator interface.
介绍遥现系统中3个最主要的组成部分：力反馈手控制器、虚拟现实装置和高级操作者界面。
In the simulator, a graphical user interface allows the users to visualize the simulation process, including animation of vehicle motion and some figures reflecting the traffic situation.
同时，该系统还可以根据车辆运动统计出了一些集总变量的变化情况，例如交通流量、交通流速、交通密度等。
In the simulator, a graphical user interface allows the users to visualize the simulation process, including animation of vehicle motion and some figures reflecting the traffic situation.
同时，该系统还可以根据车辆运动统计出了一些集总变量的变化情况，例如交通流量、交通流速、交通密度等。
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