... family selection system 释义：家系选择系统 family selection method 释义：家系选择法 local selection pressure 释义：局部选择压力 ...
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The determination method of Tetracycline family of drugs residue in the tissue was improved through the pretreatment and selection optimization of GC analytical conditions.
通过前处理方法和色谱分析条件的选择优化，改进了组织中四环素族药物残留的检测方法。
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