这些说明，防御食品中人为的添加化学物质、有害物质有些是可是用肉眼或简单的方法检验出来的。
These instructions, defense artificially added chemicals in food, some harmful substance is but with the naked eye or simple method of inspection.
方法搜集并整理72例进行超声引导下腹腔诊断性穿刺的急腹症病人的资料，穿刺液经肉眼观察分析后送实验室检验。
Methods A total of 72 patients with clinically suspected acute abdomen in this clinical study. The puncture fluid were prospectively examined with nute-eyes before clinical experiment.
方法搜集并整理72例进行超声引导下腹腔诊断性穿刺的急腹症病人的资料，穿刺液经肉眼观察分析后送实验室检验。
Methods A total of 72 patients with clinically suspected acute abdomen in this clinical study. The puncture fluid were prospectively examined with nute-eyes before clinical experiment.
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