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不好的取样技术会有相反的测试结果(见下)。
A negative test may also be the result of poor sampling technique (see below).
youdao
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影响测试水分析的主要因素是取样条件。
The main factor that influences the water analysis is the sampling condition.
youdao
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影响测试水分析的主要因素是取样条件。
The main factor that influences the water analysis is the sampling condition.
youdao