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。
He said they were opposed to what he described as the presence of alien forces in the region.
他说他们反对他所描述的在该地区有外国军队的存在。
Glaser says the widespread presence of pottery confirms the soil's human origins.
格拉泽说，陶器的广泛存在证实了土壤的人类起源。
I don't think the rage, the anger, and the sense of the presence of God are antagonistic.
我不认为暴怒、生气与上帝的存在背道而驰。
Install a CO detector to alert you of the presence of the deadly, odorless, colorless gas.
安装一氧化碳检测器来警告是否存在这种致命的、无色无味的气体。
The essential condition for the decay of the vacuum is the presence of an intense electric field.
真空衰变的基本条件是存在强电场。
Her theory about uranium would have explained the presence of element 43 in her team's ore sample.
她关于铀的理论可以解释她的团队的矿石样本中43号元素的存在。
Likewise, the other foods and pleasing odors attracted and maintained the continued presence of God in the sanctuary.
同样，其他食物和令人愉悦的气味吸引并保持了上帝在圣所中的持续存在。
Postmortem analysis showed the presence of an as yet unidentified virus, as well as evidence of a known bacterial toxin.
尸检分析显示存在一种尚未识别的病毒，以及一种已知细菌毒素的证据。
The development of complex life on Earth depended on the presence of bacteria that could be consumed by larger organisms.
地球上复杂生命的发展依赖于细菌的存在，而细菌可以被更大的有机体所吞噬。
Researchers have come to realize that being humble generally indicates the presence of deeply admirable personal qualities.
研究人员已经意识到，谦虚通常标志着非常令人钦佩的个人品质的存在。
For example, a lot of people think the presence of details demonstrates that the work was done by a more sophisticated artist.
例如，很多人认为细节的存在表明作品是由更老练的艺术家完成的。
"The presence of peers makes adolescents and youth, but not adults, more likely to take risks," Steinberg and Gardner concluded.
“同龄人的存在使青少年和年轻人更有可能去冒险，成年人则不在此列。”斯坦伯格和加德纳总结道。
Archaeologists know that mounds such as these are the kinds of geological features that indicate the presence of ancient settlements.
考古学家知道，像这样的土堆是能表明有古代定居点存在的地质特征。
As you will have heard, a couple of local primary schools have also been vandalised recently—despite the presence of security guards.
正如你所听到的，当地的几所小学最近也遭到破坏——尽管有保安在场。
Blind people, without even being aware of the fact, are actually using echoes of their own footsteps and of other sounds, to sense the presence of obstacles.
甚至还没有意识到这个事实的盲人，实际上是在利用他们自己的脚步声和其他声音的回声来感知障碍物的存在。
Some point to the presence of Egyptian names, and customs, and religious beliefs and laws as a sign of some historical memory being preserved in these stories.
一些人指出埃及人的名字、习俗、宗教信仰和律法的存在，是这些故事中保留的一些历史记忆的标志。
Now some experts are proposing that we should take advantage of the teen brain's keen sensitivity to the presence of friends and leverage it to improve education.
现在一些专家提出，我们应该利用青少年的大脑对朋友在场的敏锐感知，并借助它来改善教育。
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.
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。
Its radio begins to transmit an astonishing amount of information about the satellite's orbital path, the amount of radiation it detects, and the presence of meteorites.
无线电开始传输大量信息，都是关于卫星的轨道路径、探测到的辐射量以及陨石的存在的。
In usual materials, one finds an inverse relation between the two properties, whereas for many practical applications simultaneous presence of both properties is desirable.
在通常的材料中，人们会发现这两种性质之间的反比关系，而在许多实际应用中，同时存在这两种性质是可取的。
The document was signed in the presence of two witnesses.
本文件由两位证人见证签署。
The test can identify the presence of abnormalities in the unborn child.
这项化验能鉴定胎儿是否有不正常现象。
The codicil must first be signed and dated by you in the presence of two witnesses.
该遗嘱附件必须首先由你当着两个连署人的面签名并写上日期。
The continuing presence of American troops on Korean soil remains a very sore point with these students.
美国军队继续驻留在韩国领土依然是令这些学生极其恼怒的事情。
Ah, yes, but could so fantastic a pauper get admission to the august presence of a monarch?
啊，不错，但是这样一个穷光蛋能得到国王庄严接见的机会吗？
A conspicuous sign indicating the presence of white-tailed deer in a woodlot is a buck rub.
白尾鹿出没于一片林地的明显标志是“擦鹿”。
Tom was so stunned that he had not even presence of mind enough to say, "Who cares, Miss Smarty?"
汤姆十分惊愕，连一句话也说不出来：“谁在乎呢，自以为是小姐？”
He touched a bell, and a page appeared, who was ordered to desire the presence of Sir William Herbert.
他按了一下铃，一个侍者出现了，侍者奉命去请威廉·赫柏特爵士。
Six years of observations revealed the presence of five planets between 13 and 25 times the mass of Earth.
经过长达六年的观测，发现有五颗行星的质量是地球的13-25倍。
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