However, this purely visual system was useless in bad weather, and, by the 1930s, radio communication was coming into use for ATC.
然而，这种纯粹的视觉系统在恶劣天气下毫无用处，到了20世纪30年代，无线电通信开始用于空中交通管制。
Attaching radio devices to it is difficult, and visual sightings are too unreliable to give real insight into its behavior.
给它安装无线电设备是很困难的，而且仅凭肉眼观测也太不可靠，无法对它的行为进行确切的观察。
As a person with visual impairment himself, radio also provided an essential source of information.
作为一名视觉障碍人士，广播为他提供了重要的信息来源。
A private pilot's license gives you training in visual and radio navigation of a small plane.
私人飞行执照要求掌握小型飞机的无线电导航。
The college bases its majors mainly on visual communication, including information and art communication by such media as radio, TV, and Internet, and by graphic and space display media.
本院的学科设置主要基于视觉传播，包括广播电视网络媒介和平面、空间展示媒介的信息和艺术传播。
Any form of sound or visual information can be changed into radio waves.
任何形式的声音或视觉信息都能转换成电波。
The paper, it introduces an example of the development method of make object-oriented visual prototype to develop a number radio.
本文介绍了用面向对象的可视化原型开发方法，开发数字录音机的一个实例。
Of course, the user is not seen by the naked eye showing the visual effects, including through the radio technology, infrared technology to see more clearly the universe.
当然，使用者看到也不是肉眼所呈现的视觉效果，也包括通过射电技术、红外线技术看到的更为清晰的宇宙。
Theory, operating features and interface relations of three correction modes for the inertial navigation; Short-Range Radio Navigation, Long-Range Radio Navigation and Visual, are presented.
从校正方式组成及原理入手，详细地介绍了某型飞机导航系统惯导几种校正方式的使用特点及相互交联关系。
Gets a visual style element that represents a hot radio button in the checked state.
获取表示处于取消选中状态的禁用单选按钮的视觉样式元素。
Gets a visual style element that represents a pressed radio button in the checked state.
获取表示处于取消选中状态的正常单选按钮的视觉样式元素。
Gets a visual style element that represents a normal radio button in the checked state.
获取表示处于取消选中状态的活跃单选按钮的视觉样式元素。
Gets a visual style element that represents a disabled radio button in the unchecked state.
获取表示处于选中状态的按下的单选按钮的视觉样式元素。
Gets a visual style element that represents a disabled radio button in the checked state.
获取表示处于取消选中状态的按下的单选按钮的视觉样式元素。
For example, a visual style element that represents a radio button can be in the disabled, checked, or unchecked state.
例如，表示选项按钮的视觉化样式项目，可以处于停用、选取或未选取状态。
Gets a visual style element that represents a hot radio button in the unchecked state.
获取表示处于选中状态的禁用单选按钮的视觉样式元素。
Gets a visual style element that represents a normal radio button in the unchecked state.
获取表示处于选中状态的活跃单选按钮的视觉样式元素。
Gets a visual style element that represents a pressed radio button in the unchecked state.
获取表示处于选中状态的正常单选按钮的视觉样式元素。
For example, visual style elements that represent a check box, radio button, and push button are all considered parts of the "button" class.
例如，表示核取方块、选项按钮和按钮的视觉化样式项目，都视为“BUTTON”类别的组件。
For example, visual style elements that represent a check box, radio button, and push button are all considered parts of the "button" class.
例如，表示核取方块、选项按钮和按钮的视觉化样式项目，都视为“BUTTON”类别的组件。
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