isotopic 例句搜索结果

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1.

Evidence from isotopic dating suggests that the greenstone belts vary considerably in age

来自同位素年龄鉴定的证据指出，绿岩带在年龄上彼此变化相当大。收藏反馈
2.

Isotopic studies from geothermal fields indicate that about 95% of the thermal fluid from steam wells is meteoric in origin

地热田油同位素研究证明:蒸气井热流体的95%左右是大气降水成因的。收藏反馈
3.

Inorganic Mass Spectrometry is preferably used each time extremely low concentrations and isotopic abundance are to be determined.

每当测定非常低的浓度和同位素丰度时总是首先使用无机质谱法，收藏反馈
4.

isotopic abundance ratio

同位素丰度比收藏反馈
5.

The time required for half the nuclei in a sample of a specific isotopic species to undergo radioactive decay.

半衰期放射性样品的原子核经历一半放射性衰变所需要的时间收藏反馈

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