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- isotopic dements 同位素
- Isotopic discrimination is not likely. 同位素甄别是不可能的。
- Isotopic geochronology and geochemistry II. 同位素地质年代学与地球化学2。
- Measurement of geologic time,as through isotopic radioactive decay. 地质年代测定是通过放射性同位素衰变来测定的。
- From 3.5 to 0 ka B.P. ,lake water was in an isotopic steady stage. 5~0ka B.;P;湖水处于同位素稳定阶段。
- An isotopic analysis of the grains has made that fear come true. 一项对这些颗粒的同位素分析让这种担心成真了。
- How could such a change in isotopic composition have come about? 同位素的组成有这样的变化，究竟是如何发生的？
- 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。
- Some metals, such as gold, are found in their native state---that is, uncombined with other dements. 有些金属，如黄金，是以天然状态存在的，即不与其他元素化合。
- Measurement of geologic time, as through isotopic radioactive decay. 地质年代测定通过放射性同位素衰变来测定地质年代
- Abstract: As a complex system, water resources value is composed of three dements ： nature, economy and society. 文章摘要: 水资源价值是一个复杂的体系。主要由三方面要素构成，即：自然因素、经济因素、社会因素。以成都市为例。
- The mixed-edge dement whie is developed in recent years is an effective method for eliminating the spurious solutions. 近年来发展起来的杂交边缘元是一种消除伪解的有效方法。
- Comparing with the finite dement results, this method has quite accuracy to simply calculate free torsion constant. 结果表明，这是一种简单实用且精度较高的计算方法。
- "This research was carried out in collaboration with Kleitman and Dement in the United States, among others. “这一研究是与美国的克莱特曼和第门特等合作进行的。
- Methods:use the straight intersect experiment method to define the various dements level,and choose the best technology. 方法:采用正交试验法确定诸因素影响灯检合格率程度大小,并筛选出最佳工艺条件。
- The design of omni-vision system fulfills the dements of Middle-Size Soccer Robots and is easy to be implemented. 2) At the stage of image processing. 2）在图象处理阶段，本文通过径向变步长扫描实现快速的特征点提取，并通过实验标定的方式取得图象象素点与地面点的对应关系表，为机器人视觉定位提供了必要的数据基础。
- Being a noble gas, it resists chemical bonding with other elements and is thus easy to purify for isotopic analysis. 由于氙是惰性的，不易与其他元素产生化学键，因此很容易纯化以进行同位素分析。
- With these experiments, Dement concluded that time in dreams is nearly identical to time in waking life. 基于这些实验，德姆得出结论，梦中的时间和现实的时间几乎是相同的。
