isotopes 中文意思是什麼
isotopes
解釋
同位素-
In the april 14 physical review letters, investigators at the university of basel in switzerland and their colleagues suggest antineutrinos streaming in huge numbers from the neutron star could irradiate the protons and turn some into neutrons, which build stable, heavy isotopes
在4月14日的《物理評論通訊》中，瑞士巴塞爾大學的研究人員與合作伴提出，從中子星大量湧出的反微中子會照射質子，並使部份質子轉變為中子，以形成穩定的重同位素。 -
Atoms of the same element that differ in their atomic weight are called isotopes.
具有不同原子量的同一種元素被稱為同位素。 -
Isotopes are different varieties of the same element, which have identical chemical properties but differ in atomic weight
同位素是同一元素的不同種類，它們有著相同的化學特性但是原子重量不同。 -
Researches of more than four decades in the field, especially from the early 1980s on, during which the analysis of the isotopes in fossil brachiopods and early diagenetic cements has contributed much to the knowledge, achieved appreciable progress
40多年的研究結果，尤其是進入80年代方解石質的腕足化石殼體和早期成巖膠結物等特殊樣品的應用，取得了若干重大研究進展，但同時也發現了一些新的問題。 -
Looking at these isotopes allows the chondrules to be dated, and they were formed 4. 56 billion years ago
觀察這些同位素可以估算出隕石球粒的年齡，他們是在45 . 6億年前形成的。 -
Thus, the paper focuses on mineralogy, petrology, petrogeochemistry, isotopic chorology, and sr - nd - pb isotopes of the mafic intrusions and dikes in fujian province, se china. in addition, we also discussed the process of the plate subduction, mantle evolution, crust - mantle interaction, lithospheric thinning and extension, and the reaction for crustal extensi on in fujian province, se china. ( 1 ) daiqianshan mafic intrusion is situated along the changle - nanao fault, which intruded in the metamorphic rocks
基於此，本文以中國東南部福建省的基性脈巖、巖體為研究對象，運用系統的礦物學、巖石學、巖石地球化學、同位素地球化學及同位素年代學證據，詳細論述了晚中生代中國東南部板塊俯沖、地幔演化、殼幔相互作用及巖石圈伸展減薄的地球動力學過程，探討了地殼拉張期次在福建省區域構造上的響應。 -
More reactive are the heavier isotopes of hydrogen, deuterium and tritium.
更為活躍的是氫的較重同位素，氘和氚。 -
Extensive research has shown that fractional atomic masses always mean mixture of isotopes.
進一步的研究揭示出：部分原子質量常是同位素的混合物。 -
Conspicuously heavier hydrogen and oxygen isotopic compositions in maolouchi river basin after quake suggested that the water source of the rivulet mainly drained from surface runoff subjected to evaporation or the interflow composed with heavier isotopes
貓羅溪流域在地膿后其氫、氧同位素組成明顯變重，此意指流至河川之水源可能改變為遭受蒸發作用之地表逕流，或以具較重同位素組成之中間流為主。 -
Researchers said the zircon ' s high level of heavy oxygen isotopes suggest it was cooled by surface water after it formed
研究人員說鋯石的高標準重氧同位素暗示了它形成之後靠地表水來冷卻。 -
Ordinarily, this mixture means little because the various isotopes are almost indistinguishable in most of their properties.
在一般情況下，這種混合是無所謂的，因為各種同位素在它們的主要屬性上幾乎是無法區別的。 -
The inferno spewed a deadly plume of radioactive isotopes into the atmosphere.
這個象煉獄般的地方將一縷致死的放射性同位素噴入大氣層。 -
Measurement of these nuclei are often limited by interferences of isotopes and isobars
在測量這些核素時，通常存在同位素和同量異位素的干擾。 -
Later he named these separate forms isotopes.
后來他稱這些不同的形式為同位素。 -
The breakdown of radioactive isotopes goes on at constant rates.
放射性同位素的衰變在恆定的速率下進行。 -
Thompson was able to demonstrate the existence of two isotopes of neon.
湯普森能證明氖有兩種同位素存在。 -
There are two main types of uses of radioactive isotopes in biochemistry.
在生物化學中，放射性同位素主要有兩方面的應用。 -
Ions of different isotopes converge at different points on the photographic plate.
在照相底板上不同的同位素的離子會聚于不同點。 -
The trace element compositions and sr - nd isotopes suggest that the upper mantle beneath the studied area were subjected to multiple episodes of metasomatism, probably by small melt fractions derived from the asthenospheric mantle
微量元素和sr - nd同位素特徵表明該區上地幔經歷了多期地幔交代作用，交代介質可能是源自軟流圈的小體積熔體。 -
Determinations for isotopes of lead strontium and neodymium in rock samples
巖石中鉛鍶釹同位素測定方法
分享友人