“基本坐标系”是天文学专有名词。来自中国天文学名词审定委员会审定发布的天文学专有名词中文译名，词条译名和中英文解释数据版权由天文学名词委所有。
基于极限平衡理论，根据边坡尺寸及几何关系，建立辅助坐标系与基本坐标系。
Based on limit equilibrium theory, a basic coordinate system and an auxiliary coordinate system are set up according to the size and geometrical relationship of slope.
基于双目立体视觉基本原理，得到特征点在摄像机坐标系下的位置。
The position of the feature points in camera coordinate system was obtained based on basic principle of binocular stereoscopic vision.
空气污染源排放清单编制工作的基本程序包括建立坐标系、建立空气污染源数据库、编制排放清单和排放报告；
The basic procedure of emissions inventory compilation includes building reference frame, establishing an emissions database and working out emissions inventory and report.
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