accurate positioningˈækjuritpəˈziʃəniŋ短语⁸⁴³²⁰⁺⁸ 基本例句 精确定位 The nature condition of underground mine is complicated, to effectively monitor the environment and equipment, it must have accurate positioning technologies to localize mobile devices. 在井下采矿过程中应用无线传感器网络系统实施环境监测以及设备管理，将有效地提高井下采矿生产的效率和安全性。 dictall