The traditional geological disaster survey relies on field reconnaissance with a lot of manpower and material resources.
常规的地质灾害调查往往是进行实地踏勘，地面实测，需耗用大量的人力物力。
China had successfully sent into orbit small satellites for the purposes of scientific experiments, resource survey, natural disaster forecast and environment prospecting and monitoring.
在此次发射之前，中国也曾成功的发射过小型卫星，这些卫星被应用于科学实验，资源勘探，自然灾害预报和环境保护监测。
Thus, it has a unique advantage in the field of disaster monitoring, environmental monitoring, resource exploration, forest survey, topographic mapping and so on.
因此，其在灾害监测、环境监测、资源勘查、森林调查、地形测绘等方面的应用具有独特的优势。
The ratio vegetation index(RVI)method is combined with field survey of insect pest to determine critical values of RVI for different degrees of disaster and the judgement accuracy reaches 73%.
利用比值植被指数（RVI）分析法，与实地虫灾调查相结合，找出了受虫灾影响后不同灾害程度的RVI临界值，判对率为73%。
The combined application of drilling and electromagnetic wave CT method may eliminate the probability of potential disaster during engineering survey in Karst region.
在岩溶发育地区进行工程勘察，采用常规钻探与电磁波法CT成像相结合的方法，可消除工程隐患。
It will be mainly used for scientific experiment, land resources survey, crop yield estimates and disaster prevention and reduction, according to the center.
卫星将主要用于科学试验、国土资源普查、农作物估产和防灾减灾等领域。
It will be mainly used for scientific experiment, land resources survey, crop yield estimates and disaster prevention and reduction, according to the center.
卫星将主要用于科学试验、国土资源普查、农作物估产和防灾减灾等领域。
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