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triangle of error

expl. 示误三角形由于观测误差的影响,在用交会法确定一个待定点时三条交会线不交于同一点而形成的一个三角形
tech. 误差三角形; 示误三角形; 闭合误差三角形
triangle-of-error
: 8 phrases in 4 subjects
Bridge construction1
Oil / petroleum1
Surveying1
Technology5

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