线索调查
In exposed rock areas and worked out mines, structure rock fissure survey and vein rock survey can be employed to trace deep blind orebodies.
在岩石裸露区和已开采的矿山采用构造岩石裂隙测量和脉岩测量追踪深部盲矿;
Survey of Trace Metal Element of Human Hair with FAAS
FAAS对人发微量金属元素的测定
To survey of trace elements and value for nutrition on dietary of a middle school run by the local people, probe into the best dietary standard, all-round improve nutrition of the students, the balance weight method was used for the dietary survey.
为调查和评价民办中学膳食中微量元素营养情况,探讨最佳膳食模式,全面改善学生的营养,采用称质量法调查三天膳食。
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