| 1. | Isotopic discrimination is not likely .
同位素甄别是不可能的。 |
| 2. | The isotopic signatures of most ancient limestones indicated the same process .
大多数古代石灰岩的同位素特征说明了同样的过程。 |
| 3. | It is important to avoid the use of uranium compounds of unspecified isotopic composition .
要避免使用那种非专用的同位素成份的铀化合物。 |
| 4. | 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。 |
| 5. | 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。 |
| 6. | Isotopic geochemical studies on global change
全球变化研究中的同位素地球化学 |
| 7. | Absolute isotopic abundance measurement
绝对同位素丰度测量 |
| 8. | Progress on isotopic geochemistry of boron and chlorine in salt lakes
盐湖硼氯同位素地球化学研究进展 |
| 9. | Isotopic analysis of uranium by single - standard gas mass - spectrometer method
单标准气体质谱法铀同位素分析 |
| 10. | New isotopic dating information in iran and its geological interpretation
伊朗同位素研究新资料及其地质解释 |
