它们进化到能够识别出几种基本的味道，以便快速辨别毒素，而毒素在自然界中通常是很苦或很酸的。
They evolved to recognise only a few basic tastes in order to quickly identify toxins, which in nature are often quite bitter or acidly sour.
在宇宙中其他的一些物理过程，那些不牵涉到生物体的过程，是可以创造出氨基酸的。
Other physical processes in space, processes that don't involve living organisms, can create amino acids.
M.O.A 这种有机分析器令人印象深刻的原因之一是：它不仅检验了氨基酸是否存在，而且还测试出了氨基酸的旋向性。
One reason the M.O.A., the organic analyzer is so impressive is that it tests not just for the presence of amino acids but also for the handedness of amino acids.
他们发现，在富含单宁酸的橡树叶上，病毒杀死毛虫的效果要比在白杨树叶子上的效果差得多，因为白杨树叶子的酚含量较低。
They found that on tannin-rich oak leaves, the virus is considerably less effective at killing caterpillars than when it is on aspen leaves, which are lower in phenols.
然后，含有这些信使核糖核苷酸的脑细胞就可以被分离开来，研究者可对其信使核糖核苷酸进行解码，以确定它们的蛋白质产物究竟是什么，并确定这些蛋白质产物在何种程度上类似于真正的肽激素。
The brain cells containing these mRNA's can then be isolated and their mRNA's decoded to determine just what their protein products are and how closely the products resemble the true peptide hormones.
含有神经酸的植物在该国是稀缺的。
The plants containing nervonic acid is scarce in the nation.
研究提取白花蛇舌草对香豆酸的最佳方法。
Study the best method for extraction of p-coumaric acid in Oldenlandia diffusa Roxb.
已测出了忍冬叶中绿原酸和总咖啡酰奎宁酸的含量。
The contents of chlorogenic acid and total caffeoylquinic acid in Folium Lonicerae had been determined.
某些系统（例如带有聚质子酸的系统）适用于电子表格计算。
Some systems, such as with polyprotic acids, are amenable to spreadsheet calculations.
不可渗透的粘土限制了水和黄腐酸的向下渗透，从而减少了化学风化和土壤灰化作用。
Impermeable clay limits downward percolation of water and fulvic acids, reducing chemical weathering and podzolization.
在一定的条件下酸的东西可以变甜。
酸的积累使消化道的消化功能下降。
The accumulation of acid in the digestive tract makes digestion increasingly inefficient.
当你买食品时，你是怎样辨认反式脂肪酸的？
How do you recognize trans fatty acids when shopping for food items?
那是对有机化合物和氨基酸的不可思议的收藏。
It was an unbelievable collection of organic compounds and amino acids.
不用说，甜的水果比苦的和酸的水果含有更多的糖。
It also goes without saying that sweet fruits contain more sugars than bitter and sour fruits.
鱼油是omega -3脂肪酸的一个极好的来源。
Fish oils provide an excellent source of omega 3 fatty acids.
减少饱和脂肪酸的总摄取量可以降低血液内胆固醇水平。
Reducing the total amount of saturated fat we eat can help to reduce our blood cholesterol levels.
如果糖延缓了酸的释放，可能有助于保持蔬菜的色与形。
If the sugar slowed the release of acids, perhaps that would help preserve color as well as shape.
听说过有一种水果可以改变你的味蕾，使酸的东西尝起来是甜的吗？
Ever heard of a small fruit that alters your taste buds, making all sour things sweet?
按照研究，钙可以帮助减少你的身体对饱和脂肪酸的吸收。
According to research, calcium may help reduce the amount of saturated fat your body absorbs.
它的拼写实质上是各种氨基酸的缩写所构成的一个音节串。
Its spelling is essentially a syllabic string of abbreviations for amino acids.
含有乳酸，甘油或透明质酸的清洁剂能清洁但不会刺激皮肤。
Cleansers that contain lactic acid, glycerin or hyaluronic acid will work to clean the skin without provoking irritation.
所以你吃的时间越长，你的牙齿暴露于酸的攻击的时间就越长。
Therefore, the more times you eat the more times your teeth are exposed to an acid attack.
这就表明脂肪酸的角色是复杂的，而且可能比想象的还要重要。
This suggests that the fatty acids' role is more complex, and possibly more important, than was thought.
这饮料是非常酸的，有高水平乳酸和其它酸，所以专家提醒要节制。
The drink is fairly acidic with high levels of lactic acid and other acids, so experts advise moderation.
基因资料—dna和rna—链是称为核苷酸的小单元组成的序列。
Strands of genetic material - DNA and RNA - are sequences of small units called nucleotides.
血脂异常：高饱和脂肪酸的饮食能够增加低密度脂蛋白胆固醇的程度。
Abnormal blood fats: a diet high in saturated fats increases the level of LDL (bad) cholesterol.
研究者们发现，抑郁情况的出现于食用反式脂肪酸的摄入基本成正比。
Researchers found that the risk of developing depression increased as trans-fat consumption rose.
选用维生素是因为他们控制了血液中一种叫高半胱氨酸的氨基酸的含量。
The vitamins were chosen because they control the amounts of an amino acid called homocysteine in the blood.
选用维生素是因为他们控制了血液中一种叫高半胱氨酸的氨基酸的含量。
The vitamins were chosen because they control the amounts of an amino acid called homocysteine in the blood.
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