可乐中的活跃成份就是含磷的酸性物质。
酸雨——大气中沉积的酸性物质。
在伤处喷洒一些酸性物质将有助于去掉蛰痛。
Pouring something acidic on the wound will help take the sting out.
每当你吃含糖的零食时，一些酸性物质都会损害你的牙齿。
Damaging acids form in your mouth every time you eat a sugary snack.
雨水中多含酸性物质，会腐蚀车漆的外层亮膜。
In the rain, it contains more acid material, which can be corroded in the outer layer of the car paint.
酸性物质会软化牙釉质，立即刷牙会磨损牙齿。
The tooth enamel is softened by the acid and brushing straight after will wear the teeth down.
在底下，水一滴滴地释放出酸性物质形成钟乳石。
Underground, the water releases its minerals drop by drop forming stalactites.
醋含有酸性物质能预防毒液在血液中扩散(但不能减缓疼痛)。
Vinegar has acetic acid, which disables the box jelly's nematocysts that have not yet discharged into the bloodstream (though it will not alleviate the pain).
唾液要用一小时的时间才能中和掉由食物和饮料产生的酸性物质。
Saliva takes about an hour to neutralise the acid created by a food or drink.
研究人员表示：“牙齿每天能抵抗五次的酸性物质侵蚀。
‘A tooth can withstand five acid attacks a day, ’ says one researcher.
研究人员表示：“牙齿每天能抵抗五次的酸性物质侵蚀。
‘A tooth can withstand five acid attacks a day,’ says one researcher.
食品中的酸性物质开始溶解罐的金属内层，这种化学反应会产生氢气。
The acids in the food begin to attack and dissolve the metal lining of the can, and one of the by-products of this chemical reaction is hydrogen gas.
嚼口香糖能促进唾液的分泌，这些唾液能够清除酸性物质。
Chewing gum makes your mouth wetter, which then washes away this acid.
可可碱似乎能修复牙釉质并保护牙齿免收酸性物质的进一步腐蚀。
Theobromine appears to help with repairing enamel and protecting teeth from further erosion by acids.
这是因为豆芽中含有大量的抗酸性物质，可起到很好的防老化功能。
This is because the presence of a large number of bean sprouts acid substances, Anti-aging can be a very good function.
到这个时候，甚至健康的食物都会被转化成酸性物质，食物过敏会越来越严重。
When that happens, even healthy foods can become acidic and the food allergies will become more prevalent.
食物中的酸性物质会软化牙釉质，软化的牙釉质几分钟后才能恢复。
The acids in food soften the enamel, which takes a while to recover.
清洁银器时要戴上棉手套，因为你皮肤里的酸性物质会使它失去光泽。
Wear cotton gloves when cleaning silver, because the acid in your skin can tarnish the metal.
牙垢膜是由牙齿表面细菌形成的黏膜，会制造酸性物质并侵蚀珐琅质。
Plaque is the sticky film of bacteria that forms on the teeth and produces acids which dissolve the tooth enamel.
这样一来，如果你一整天都在小口啜饮一罐饮料，就等于那些酸性物质一直在攻击你的牙齿。
So if you have a can of fizzy drink and sip it all day long, then the acid in your mouth will be under constant attack.
用铁锅做饭，一些食物中的酸性物质（如西红柿）可以把铁从锅中“提取”出来。
Cook in cast iron pans - the acid in some foods (like tomatoes) "pulls" the iron from the pan.
而唾液正像一道保护牙齿的屏障，把橘子等酸性食物以及细菌分解食物产生的酸性物质中和掉。
Saliva acts as a barrier, protecting the teeth by neutralising acidic foods such as oranges, and the acid produced by bacteria as they break down foods.
而唾液正像一道保护牙齿的屏障，把橘子等酸性食物以及细菌分解食物产生的酸性物质中和掉。
Saliva acts as a barrier, protecting the teeth by neutralising acidic foods such as oranges, and the acid produced by bacteria as they break down foods.
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