通过肉眼观察，发现多数包装袋状况良好，只有极少数出现微量渗漏。
In our ocular inspection, we found most of bags were in good condition and only very few bags had little spills.
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.
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.
研究人员通过将两个大到肉眼能够观察的超导体的电流联系起来，拓展了可以观察到的量子效应的范围。
By linking the electrical currents of two superconductors large enough to be seen with the naked eye, researchers have extended the domain of observable quantum effects.
它是一个布满星星的圆盘，从一端到另一端跨越了120,000光年。你可以用肉眼，也可以通过光学望远镜观察银河系。
From end to end, the Milky Way's starry disk, observable with the naked eye and through optical telescopes, spans 120, 000 light-years.
通过肉眼和放大镜下观察，翡翠玉器的抛光表面一般都可见到微波状起伏，即微波纹。
The wavy lines on the polished surface of jadeit jade are visiable to the naked eye or observation under magnification.
因为它们发生得太快，人的肉眼无法观察到，只能通过仪器才能观测到。
Because they occur too fast to be seen with eyes, they can be detected only by instruments.
这种树叶中含有的黄金粒子十分微小，不足以凭肉眼观察到，但是科学家们通过一种专门探查微量金属和矿物的X射线仪器发现了它们。
Thee particles are much too small to be seen with the naked eye but have been detected using a type of x-ray that is especially good at picking up trace amounts of metals and minerals.
Yu说，我们不能打开脑来用肉眼观察，但是我们现在能作的事情是通过MR来观察，这项技术比早期的X线显象安全的多。
"We can't open the brain and see by eye, but the cool thing we can do now is see through the MR machine," a technology that is much safer than earlier techniques such as X-ray imaging, said Yu.
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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