The geologic story the Opportunity read there always spoke of an ancient martian wasteland of windblown dunes pocked by the occasional acid-laced puddle.
机遇号对于火星地理结构的解读总是揭示出一个存在于远古火星的，来自于海洋性酸股介水坑的废弃风沙之地。
酸腐蚀金属。
Rye is tolerant of poor, acid soils.
黑麦耐贫瘠的酸性土壤。
It is treated with acid before being analysed.
对它先用酸处理再进行分析。
His stomach might rupture from all the acid.
他的胃可能会因为所有这些酸而穿孔。
Litmus paper turns red in the presence of an acid.
石蕊试纸遇到酸就变红。
Antacids are alkaline and they relieve pain by neutralizing acid in the contents of the stomach.
抗酸剂是碱性的，它们通过中和胃容物中的酸来缓解疼痛。
The somewhat acid flavour is caused by the presence of lactic acid.
略有的酸味是由乳酸的存在造成的。
Carbolic acid is usually used for cleaning.
石炭酸常用于清洁。
Cars cause pollution, both smog and acid rain.
汽车引起污染，既有烟雾又有酸雨。
These shrubs must have an acid, lime-free soil.
这些灌木必须要有酸性、无石灰的土壤。
Iron and folic acid supplements are frequently given to pregnant women.
铁和叶酸补充剂常给孕妇服用。
Sulphur dioxide is a pollutant and a major contributor to acid rain.
二氧化硫是一种污染物，并且是形成酸雨的主要因素。
Citric acid can be extracted from the juice of oranges, lemons, limes or grapefruit.
柠檬酸可以从橙汁、柠檬汁、酸橙汁或柚子汁中提取。
柠檬是一种酸味水果。
Does that metal pit after contact with acid?
那种金属同酸接触后是否会起凹点？
The acid has burnt a hole in my jacket.
这种酸把我的上衣烧了一个窟窿。
Those needles add a lot of acid to the soil.
这些松针给土壤增加了很多酸性。
The mice produce a special thing named glutamic acid in their bodies.
老鼠体内会产生一种叫做谷氨酸的特殊物质。
The lactic acid is released into the seal's blood only after the seal surfaces, when the lungs, liver, and other organs quickly clear the acid from the seal's bloodstream.
只有在海豹浮出水面后，即当肺部、肝脏和其他器官迅速将乳酸从海豹血液中清除时，乳酸才会被释放到海豹的血液中。
The organic litter of another tree species might add less acid but more of something else.
另一种树种的有机凋落物可能不会添加这么多酸，但会添加较多的其他物质。
He assigned (指定) a unique note to each amino acid (氨基酸) is the protein.
他为蛋白质中的每一个氨基酸分配了一个独特的注释。
With a little help from this carbonic acid, moving water forms most of the world's limestone caves.
在这种碳酸的帮助下，流动的水创造了世界上大部分的石灰岩洞穴。
Words like "acid", "gravity", "electricity" and "pendulum" had to be invented just to stop their meetings turning into an endless game of charades.
像“酸”，“重力”，“电”和“钟摆”这些词不得不被发明出来，只是为了防止他们的会议变成一场无止尽的字谜游戏。
Until very recently, Presorbin and Veltrex, two medications used to block excess stomach acid, were both available only with a prescription written by a doctor.
直到最近，Presorbin和Veltrex 这两种用于阻止胃酸分泌过多的药物，都只有医生开处方才能买到。
Also, in surface water, there is a weak acid, carbonic acid, not sulfuric acid, but carbonic acid that helps dissolve the rock.
另外，在地表水中存在一种弱酸，它是碳酸，而不是硫酸，而且是能帮助溶解岩石的碳酸。
我们怎么防治酸雨呢？
What else does sulfuric acid do?
硫酸还能做什么？
Large quantities of nitric acid were produced.
大量的硝酸产生了。
We've said that sulfuric acid dissolves limestone, right?
我们说过，硫酸可以溶解石灰石，对吗？
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