你能告诉我热天防止牛奶变酸的方法吗？
Can you tell me about a way to prevent milk from turning sour in hot weather?
牛奶变酸，其酸无比。
铬变酸比色法可用于测定酶反应液中甲醛浓度。
Colorimetry of chromatic acid may be used to determine the concentrations of L-serine and formaldehyde in the reaction solution.
加醋会使溶液变酸。
恐惧使调色板变酸，剥夺你对生命甜美甘露的品尝。
Fear sours the palette and deprives you from tasting of the sweet nectar of life.
海洋温度上升、海水污染、海水变酸和飓风频发将大量的珊瑚漂白。
Rising ocean temperatures, water pollution, ocean acidification and cyclones continually pummel the reef and have caused mass coral bleaching.
超过百分之其实的牛奶都变酸了，但只有一些人知道。
More than 70 percent of the milk goes sour, but only a couple of people know.
由于我们额外的碳污染物在海水中溶解，全世界的海洋表面正逐渐变酸。
The surface of the world's ocean is slowly turning to acid as our extra carbon pollution dissolves in seawater.
我的研究表明，6天暴露在空气里以后很多非洲产的咖啡豆会变酸一点点。
Some of my findings had shown that more of the African beans had soured a bit after the 6th day of being exposed to open air.
同时，一场暴雨带来了急需的水，直到它改变酸雨，威胁到每个人的生命。
Meanwhile, a rainstorm brings much-needed water until it changes to acid rain and threatens the lives of everyone it touches.
西部欧洲人允许东部欧洲人侥幸逃避这个可恶的修正主义，他暗示说，是因为他们害怕变酸的关系。
Western Europeans were allowing eastern Europeans to get away with this outrageous revisionism, he suggested, because they were fearful of souring relations.
这是因为酒瓶一旦打开，酒就会开始氧化，并且(许多读者毫无疑问已经发现了)不久就变酸了。
This is because once a bottle is open, the wine begins to oxidise and, as many readers would have doubtless discovered, soon turns to vinegar.
大量化石燃料的消耗产生了一些严重的负面效应，包括气候变化、海洋变酸、石油泄漏等现象。
That massive fossil fuel consumption produces some nasty side effects, including climate change, acidified oceans, and oil spills.
当我们屏住呼吸的时候，我们能够感到到我们的血液变酸，因为二氧化碳溶解在里面形成了碳酸。
When we hold our breath we sense our blood becoming acidic as carbon dioxide dissolves in it forming carbonic acid.
因为在酒变酸前，餐厅老板无法指望其他顾客去豪饮掉瓶中剩酒，因此一瓶一瓶的出售是唯一明智的做法。
Since restaurant owners cannot count on some other customers to quaff the rest of the bottle before the beverage sours, charging for the bottle is the only sensible thing to do.
预计到2050年，由于化石燃料燃烧释放的二氧化碳溶于海水，海水变酸，全球范围的珊瑚礁将急剧缩减。
2050 projected year when coral reefs worldwide will shrink because of increased ocean acidity as atmospheric carbon dioxide, from burning fossil fuels, dissolves in seawater.
另外，二百年之后较短时期的火山活动再一次使得地球变热，海水变酸，从而再一次打击了生物，但是同样恢复的很快。
Another, smaller episode of volcanism 2m years later, which once again heated the planet and turned the seas acid, hammered life again-and again it recovered quickly.
实验结果表明，改变酸醇比例可以控制聚酯分子量，扩链改性后的产物结晶度下降、力学性能提高、降解性能也得到改善。
Results indicated that changing the proportion between the acid and alcohol could control the molecular weight of the polyesters and the modified poly-(butylenes su…
实验结果表明，改变酸醇比例可以控制聚酯分子量，扩链改性后的产物结晶度下降、力学性能提高、降解性能也得到改善。
Results indicated that changing the proportion between the acid and alcohol could control the molecular weight of the polyesters and the modified poly-(butylenes su…
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