Field survey and experimental studies.
现场调查及实验研究。
It is necessary to survey in field assisted by remote sensing technology in that area.
在该地区有效地运用遥感技术来辅助野外实地调查十分必要。
Field gravity survey was an important method of gravity field model optimization.
野外重力测量是精化全球和局部重力场模型的重要手段之一。
This will develop the application field in survey.
这拓宽了可控震源的应用领域。
Though the fast survey in the field is quick, the precision is not high.
田间速测的速度虽快，但精度不高。
Though the fast survey in the field is quick, the precision is not high.
田间速测的速度虽快，但精度不高。
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