Isotope
英音[ ˈaɪsətəʊp ] 美音[ ˈaɪsətoʊp ]

同位素

常用释义

词性释义

n.

同位素
例句
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  • 同位素
Both of the experiments proved effective, moreover the latter would be better since the stable isotope is harmless.
结果指出,两种方法是等效的,由于稳定同位素对人体无害,因而后者更有应用前景。
In atomic spectroscopy, the subject of isotope shifts is one of the few problems that links atomic and nuclear physics.
原子光谱中,同位素位移是少数几个能够将原子物理学和原子核物理学这两个不同的物理学分支联系起来的课题之一。
同位素示踪法和涡轮流量计法是目前国内各油田普遍采用的环空测井方法。
但是空气中的氮气中的氮原子却会被一个叫做同位素的有着不同数量中子的氮原子所替换。
And the heavier oxygen from a natural process that left more of the light isotope in the part of the nebula that made the sun.
重量较大的氧来自某种自然过程,在此过程中,大部分的轻同位素留在了形成太阳的部分星云中。
飓风刚形成之初,通常位于海面上空,它所降落的雨水一般含较重氧同位素水分子。
基于稳定同位素标记的质谱分析技术是蛋白质定量最常用的方法之一。
而综合证据与氧同位素则可能比较接近实际气温。
核化学:放射性化学品,辐射化学,辐射化学,同位素化学,核化学。
Experts have played down the dangers, arguing that the isotope of nitrogen known as nitrogen-16 lasts for only five seconds.
专家们说相关辐射危险性很小,因为氮的同位素氮16只会存在5秒钟。
对于给定的校准标准,得到在质谱范围中的测量的同位素峰集群数据。
Of early bone metastases in general without any symptoms, bone isotope scan can be found to have bone lesions.
骨转移早期一般无任何症状,骨同位素扫描可发现有病变的骨骼。
无论如何,在氘和一个氦的轻同位素也就是氦-3之间有一种吸引人的反应。
Recent developments of two mid-infrared tunable laser spectrometers dedicated to carbon isotope ratio determination are presented.
最近的事态发展的两个中红外可调谐激光光谱致力于碳同位素比值测定结果。
Isotope ratios of Pb contained in wares were measured using Time-Of-Flight Secondary Ion Mass Spectrometry(TOF-SIMS)without any references.
介绍了用飞行时间二次离子质谱法对器物中的铅同位素比值的测量。
The Daedalus spacecraft weighed around 50, 000 tonnes, almost all of which would have been a very rare Helium isotope called Helium-3.
代达罗斯飞船重约5万吨,大部分都是它携带的燃料——氦3。
本文采用水化学和同位素方法对四川黄龙沟沿途出露的7个泉点进行了分析。
这座城市面临的最大问题就是处理铯—137,这是一种半衰期为30年的放射性同位素。
After seven rounds of bacterium-based selection, the enrichment of each round was tested by isotope labeled ssDNA binding assay.
对每一轮文库标记同位素,结合实验证实第五轮文库富集程度最高。
The ratio of the silver-109 isotope to silver-107 turned out to be much higher in New World silver than in the European coins.
109同位素银和107同位素银在新世界银的比例要比来自欧洲的银币高很多。
但是研究团队发现在月球上氯的同位素的比率大约是地球上的25倍。
Studies of Pb, S, H, O isotope geochemistry indicate that the mineralization resources were from deep source fluid and rocks of the strata.
铅、硫、氢、氧同位素地球化学研究表明,成矿物质来源于深源流体及地层岩石。
这些癌症其实是可以避免的,只要在受到辐射之后,马上给儿童们服用不具有放射性的碘的同位素做成的药片。
所需物质(元素、同位素及电荷态)的选择,被全部质谱的信号特征所证实。
这些中子跟氮元素的核子产生反应,释放出一个质子并产生出活性碳同位素14。
氢氧同位素数据在大气降水线附近,指示了晚阶段大气降水参与的积极影响。
稳定性氢氧同位素是广泛存在于水中的环境同位素。
高通量同位素反应堆中靶子位置周边中子通量特征…[中国核科技信息与经济研究院]。
Another isotope, lithium-6, is overabundant: there may be as much as 1000 times too much of it.
而另一种锂,即同位素锂-6却是过于丰富:它的含量可能是过多的1000倍。
Initial Sr isotope ratios show that the ore materials of the deposit were derived from the host rocks or Precambrian basement.
锶同位素初始比值测试结果表明大梁子铅锌矿床成矿物质来源可能主要源自围岩碳酸盐岩或基底地层。
1·Almost all the oxygen in water is oxygen 16, but a few molecules out of every thousand incorporate the heavier isotope 18.
水中几乎所有的氧都是氧16,但每一千个分子中就有几个含有较重的同位素18。
2·The oxygen isotope ratio of the ocean changes as a great deal of water is withdrawn from it by evaporation and is precipitated as snow to form glacial ice.
随着大量的水通过蒸发被抽离,并以雪的形式沉淀形成冰川冰,海洋中氧同位素的比率就发生了变化。
3·When the air was warm, vapor containing the heavier isotope, oxygen-18, condensed and formed precipitation, in the form of snow, more readily than did vapor containing oxygen-16.
当空气温度较高时,含有较重同位素氧-18的蒸汽比含有氧-16的蒸汽更容易凝结,并形成雪状的降水。
4·It is a global record: there is remarkably little variation in isotope ratios in sedimentary specimens taken from different continental locations.
这是一个全球性的记录:在取自不同大陆位置的沉积标本中,同位素比率的变化非常小。
5·When we count up the lithium atoms held in stars, there is only one-third as much of the lithium-7 isotope as there should be.
当我们算出了在各个恒星中锂原子的总数,同位素锂- 7的总量仅是在那里应有量的三分之一。
常用短语
stable isotope
stable isotope - 稳定同位素
radioactive isotope
radioactive isotope - 放射性同位素
isotope analysis
isotope analysis - 同位素分析
isotope separation
isotope separation - 同位素分离
isotope geochemistry
isotope geochemistry - 同位素地球化学
isotope effect
isotope effect - 同位素效应
同义词
n.
[核]同位素
同根词 (词根isotope)
isotopic adj 同位素的;同位旋的