当存在三聚氰胺时，溶液的颜色将在几秒钟之内迅速从红色变为蓝色，而且能够同时通过肉眼观察和分光光度法检测到。
When melamine is present, the color of the solution changes from red to blue within seconds and can be measured both by visual inspection and spectrophotometry.
如果存在三聚氰胺，将会形成一种沉淀物质，这也可以同时通过肉眼观察和分光光度法进行判断。
If melamine is present, a precipitant is formed, which can also be assessed both visually and by spectrophotometry.
方法：在临床肉眼诊断的基础上，采用DP法对皮肤肿瘤进行辅助诊断，后经组织病理确诊，将诊断结果进行对照与回顾性分析。
Method: on the basis of visual diagnosis, DP diagnosis of skin tumor is carried out, and after histopathological diagnosis, comparison and retrospective analysis are made on the diagnostic results.
收集来院就诊并病理确诊的颜面部肿瘤患者共187例，分别经肉眼、皮肤镜偏振法(DP)和皮肤镜浸润法(DS)诊断，将结果进行回顾分析。
A total of 187 patients with face tumors proved pathologically from Air Force General Hospital were diagnosed with naked eyes, Polari-light dermoscopy (DP) and soakage dermoscopy (DS) respectively.
地质录井油气水层识别有多种方法，如岩心岩屑肉眼观察法、录井数据图版法、线性函数判别法等。
There are many kinds of oil-gas-water recognition methods such as the core and cuttings testing, cross charting, linear function recognition.
常用的评价合金材料抗变色性能的方法主要有肉眼观察法、称重法、腐蚀膜显微分析法和分光光度计法。
The common methods to evaluate alloy's anti-tarnishing capability include mainly naked eye observation, weighing weight, microcosmic analysis of corrosion film and spectrophotometer.
结论：MTT法较之常规直接观察法结果更为客观、准确，且可量化，因而可以很好的替代肉眼观察法来判定真菌药敏试验的终点。
Conclusion: MTT assay is more objective, more precise than routine direct observing, then it can replace routine direct observing assay to determine antifungal endpoint.
当处理饲料时，第一步需认识到，没有霉菌毒素也可能是一个问题。 因为，通过肉眼霉菌计数法来观察霉菌与霉菌毒素的存在两者间的相关性很弱。
When dealing with feed, the first step towards recognizing that there may be a problem may be noting the presence of mold.
当处理饲料时，第一步需认识到，没有霉菌毒素也可能是一个问题。 因为，通过肉眼霉菌计数法来观察霉菌与霉菌毒素的存在两者间的相关性很弱。
When dealing with feed, the first step towards recognizing that there may be a problem may be noting the presence of mold.
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