radioactive element的例句大全

Pierre and Mariediscovered radium 1898-scientists Pierre and Marie Curie discovered the radioactive element radium.

居里夫妇发现镭1898年的今天，皮埃尔·居里和玛丽·居里发现了放射性元素镭。

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Most helium result from the combination of one a particle released by decaying radioactive element with two electrons. polonium is the decay daughter of radioactive element radon.

氦主要是放射性元素衰变释放出的a粒子与两个电子结合而成的，钋是放射性元素氡的衰变子体。

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That essentially means that it uses a radioactive element called americium-241 to spot smoke or harmful gasses.

从字面上可以了解到，它采用放射性元素镅241来探测烟雾或者有害气体。

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he said detection of the radioactive element caesium outside the no. 1 reactor today was "a bad sign" for a core meltdown.

他说今天在第一核电站检测到放射性元素铯，这是核心融化的不好迹象。

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The rate at which radioactive elements disintegrate varies from one element to another.

放射性元素的衰变速度随元素种类的不同而不同.

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The decomposition of a radioactive element is the simplest example of a true first order reaction.

放射性元素的衰变是真正一级反应最简单的实例.

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Polonium is a highly radioactive element and a metalloid.

钋是高放射性的元素,金属.

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Apples contain pectin and more, can be combined with the radioactive element to promote their discharge.

苹果中含有果胶多, 可与放射性元素结合,促使其排出.

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A radioactive element of the alkali-metal group discovered as a disintegration product of actinium.

【化】镧系（即稀土元素）一种碱金属属的放射性元素，是锕瓦解的产物。

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In this survey, the surface γ dosage, radioactivity specific activity, uranium and thorium series equilibrium, the content of radioactive element of three kinds of typical Chinese zircon mineral has been analyzed, and the component and radioactivity of zircon in Wanning, Hainan Province tested.

调查分析了我国3个典型矿区锆英砂堆放表面γ剂量、放射性比活度、铀系和钍系平衡状况以及放射性元素含量；测定了我国海南万宁矿区锆英砂的组成及放射性。

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research on monitor technology of manmade radioactive element's aerosol

人工放射性核素气溶胶监测技术研究

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as a result technetium, element number 43, and promethium, 61, are always radioactive ( and are not found naturally in detectable quantities).

锝（43号元素）和钷（61号元素）都是放射性的，并且在自然中的存在数量无法侦测。

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Distinguish ( an element or atom) by using a radioactive isotope or an isotope of unusual mass for tracing through chemical reactions.

用放射性同位素或不寻常质量的同位素使元素或原子显示运动踪迹。

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Each element has at least one isotope with unstable nuclei that can undergo radioactive decay.

每个元素至少有一个同位素不稳定原子核可以进行放射性衰变.

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Polonium is a naturally radioactive metallic element.

钋是一种具有天然辐射性的金属元素.

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a radioactive transuranic element synthesized by bombarding curium with carbon ions; 7 isotopes are known.

一种放射性超铀元素，用碳离子轰击锔而合成，已知有种同位素。

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A naturally or artificially produced radioactive isotope of an element.

氯的一种放射性同位素.

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a radioactive transuranic element; discovered by bombarding curium with alpha particles.

一种放射性超铀元素，在用α粒子轰击锔时发现。

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Now element 43 would be called Masurium or Technetium is radioactive.

43号元素，无论是Masurium还是Technetium，都是具有放射性的。

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