现有的转矩传感器一般结构复杂，制造安装困难。
The present torque sensors usually have complex structures and are hard to make and fix.
它的无线技术使用户能够在一项活动中或电缆安装困难的远程站点上建立一个识别系统。
Its wireless technology allows users to build an identification system for an event or on a remote site where cable installation is difficult.
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。
Attaching radio devices to it is difficult, and visual sightings are too unreliable to give real insight into its behavior.
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