Mined-out area survey as the part of mineral resource exploration played an important rule in recovery of mined-out area and mine safety control.

在固体矿产资源调查过程中，采空区综合信息对于残矿回采、矿山安全具有十分重要的意义。

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At last, the effectiveness of using integrated geophysical methods to the coal mine gob area survey with specific engineering exploration is proved.

最终，结合具体工程勘查实践，证明了在煤层采空区勘查中采用综合地球物理勘查技术的有效性。

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The measurement of net arable land coefficient is of great importance in investigating the status of land-use, aiming at improving accuracy of the area survey.

净耕地系数测算是土地利用现状调查中一项极其重要的工作，其目的是提高耕地面积调查的精度。

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On April 21st Stephen Klineberg, a sociologist at Rice University, brought out the 2010 edition of his Houston Area Survey, an annual measure of the civic temperature.

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President Barack Obama will travel to the Colorado Springs area Friday to survey the damage and thank responders battling the blaze, the White House said.

CNN: Crews go on offensive against growing Colorado wildfire

His office said the increase in land discovered to be under cultivation came about because the survey area had been increased, in an attempt to improve its comprehensiveness.

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