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。
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。
The traditional geological disaster survey relies on field reconnaissance with a lot of manpower and material resources.
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