ground monitoring meaning in English

地面监控

Primary idea of national ground monitoring system for soil moisture and crop growth
全国土壤水分及作物长势地面监测体系的初步构想
A test pilot has an audience of thirty people on the ground monitoring his every move in the air
作为一名试飞员地面上有30个观众在监视着他在天上的一举一动。
Article 84 necessary navigation , communication , meteorological and ground monitoring equipments shall be installed on the air route
第八十四条航路上应当设置必要的导航、通信、气象和地面监视设备。
The modern unmanned helicopter flight control system is generally composed of the flight control computer , the servo driving mechanism , the sensor , and the ground monitor control system etc . in this thesis the research to the helicopter flight characteristics was conducted at first , and its flight dynamic model was preliminary discussed , especially the mathematic model under hung - stop condition was formulated and the algorithm of the controller was designed in detail
现代无人直升机飞行控制系统一般由飞行控制计算机、伺服驱动机构、传感器、地面监测控制等分系统组成。本文首先对直升机的飞行特性进行了研究,并且对飞行动力数学模型做了初步探讨,尤其对在悬停状态下的数学模型做了较为详尽的公式推导和控制器的算法设计。