determination of origin
产地确定
以上为机器翻译结果，长、整句建议使用 人工翻译 。
An analytical method for the determination of amitraz and 2,4-dimethyl anilinein in foods of animal origin was developed by gas chromatography-mass spectrometry.
建立了测定动物源产品中双甲脒及其代谢产物残留量的气相色谱—质谱法，并对样品预处理的方法和定量检测条件作了较详细的探讨。
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Gulliksen also said the cruise line agreed with the Coast Guard's determination of the origin of the fire.
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