The caution device is composed of dislocation sensor and alarm circuit, the former is set above the forward driving system.
所述挂具离位警示装置由挂具离位检测器和报警电路构成，所述挂具离位检测器设置于前进带动系统上方。
Continuously getting a user's location can really drain the battery of a mobile device, so use these APIs with great caution.
持续不断获取用户位置信息将会耗尽设备资源，所以请谨慎使用这些API。
Caution: Beginning with Android 3.2 (API level 13), the "screen size" also changes when the device switches between portrait and landscape orientation.
注意：从Android 3.2 (APIlevel13)开始，“screensize ”也随着设备的横竖屏切换而改变。
Caution: If you invoke an intent and there is no app available on the device that can handle the intent, your app will crash.
注意：如果你调用了一个意图，但是设备上却没有任何可处理该意图的应用程序，你的应用将会崩溃。
Through field test, the device could effectively to caution people who are within 5 meters of the high voltage danger zone.
通过现场试验，该装置可以有效地对高压设备周围5米之内的行人进行语音警示。
Through field test, the device could effectively to caution people who are within 5 meters of the high voltage danger zone.
通过现场试验，该装置可以有效地对高压设备周围5米之内的行人进行语音警示。
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