Air data inertial reference units adiru 大气数据惯性基准组件
Air data inertial reference unit 大气资料惯性基准组件
Areas and volumes of building - part 3 : quantities and reference units 建筑物的面积和体积.第3部分:数量和相关单位
For the characteristic of low frequency movement of the target and high frequency system line - of - sight jitter , basic theory of compound axes line - of - sight stabilization system with line - of - sight pointing reference unit ( lospru ) is analyzed 依据目标低频运动和仪器视轴高频抖动的特点,分析了使用视轴瞄准参考器的复合轴视轴稳定系统的基本原理。
As a method to classify the arable land , study on " the reference unh . s " method started in china not long ago . until now , double series of reference units whose qualities are the best or the worst respectively have not been applied to evaluate arable land at county level 样地法作为一种耕地等别划分的方法,在我国的研究刚刚起步,迄今为止,我国还没有采用优质、劣质双向式标准样地在县域内划分耕地等别的相关研究。