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在总结1958年以来湘南粵北地区水系金属量测量试验工作时,对样品的代表性问题及取样点距问题取得了一些成果。简要叙述如下。(一)样品的代表性
In summing up the experimental work of measuring the amount of metal in the water from the southern part of Hunan, southern Hunan since 1958, some achievements have been made on the representative problems of the samples and sampling pitch. Briefly described below. (A) the representativeness of the sample