The social medical problems such as family structure of the old over 65 in Yinchuan City were surveyed and analyzed.
本文对银川市城区65岁以上老人家庭结构等社会医学问题作了调查分析。
An agent structure of enormous scene of fire is surveyed in the burning area of the fire.
对一起特大火灾现场主体结构进行了调查。
In the high-resolution seismic exploration, the surface structure of work area and the diving depth must be surveyed finely and accurately.
在高分辨地震勘探中，对工区表层结构、潜水深度的勘查必须做到准确精细；
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