The woman put forward a red silk as well as a blue one for our inspection.

这个妇女拿出一条红丝绸和一条蓝丝绸给我们检查。

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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.

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。

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If a small quantity of rejects are found during patrol inspection, they will be directly put in the red inferior basket.

巡检中发现不合格品，少量的直接放到红色的次品筐内。

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But red meat and meat that will be sold in other states must have federal inspection.

VOA: special.2010.08.03