The signals are amplified so that the time interval between them can be measured with a micro-second time interval measurement unit.
应力波经过两端所用时间可用微秒时间间隔测量单元测得。
Program reset enables the camera or wireless unit to be programmed to restart during a specified time interval.
程序重置可以对相机和无线接入单元进行编程，进而在特殊的时间间隔中重新启动。
Program reset enables the camera or wireless unit to be programmed to restart during a specified time interval.
程序重置可以对相机和无线接入单元进行编程，进而在特殊的时间间隔中重新启动。
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