... 测区代号code of survey area 测区范围coverage of survey area 地应力测量geostress survey ...
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coverage e of survey area 测区范围
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In southeast mountain area of China, the vegetation coverage is very high, it is much difficult to survey soils by remote sensing.
我国东南山区植被覆盖率高，进行土壤遥感调查困难重重。
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