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- radioactive age determination 放射性年代测定性,放射性测定年代
- Age determination data indicate episodic crystallization of uranium minerals. 年龄测定数据表明，铀矿物有着不同期的结晶。
- This study deals with age determination and age distribution of muskrat populations. 利用新疆等地区的597号麝鼠头骨标本和其它材料,研究种群年龄组成。
- In conclusion, both of the diameters and numbers of statoconia may not be appropriate index in age determination of hagfish. 由以上结果总结, 盲鳗耳石的直径与数量并不适于作为盲鳗定龄的型值。
- Personal identification,as one of the most important tasks of medical jurisprudence,includes stature estimation,sex estimation and age determination. 个人识别在法医实践中占有重要地位,主要包括判定种族、推断身高、判定性别和推算年龄。
- In 1992, colleagues and I were invited to Longgupo to provide a reliable age determination and to help understand the palaeoanthropology. 1992年，我的同事们和我应邀到龙骨坡提供精确的断代，并帮助解释其在古人类学上的性质。
- In this thesis the progression of the study of lumbar vertebrae in stature estimation, sex estimation and age determination were discussed. 本文着重从身高推算、别判定和年龄判定三个方面综述了近年来腰椎在法医人类学领域的研究进展。
- In order to enhance the accuracy of skeletal age determination, further investigation for appropriate methodology should be undertaken. 因此，为了提高骨龄鉴定结论的精确度，还需进行更多方法学的研究。
- In the present work, we examined the statoconia in the inner ear of the hagfish Paramyxine nelsoni intense to explore it as a useful index in hagfish s age determination. 本研究以纽氏副盲鳗为材料,检视存在于其内耳的耳石是否可能成为为盲鳗定龄的依据。
- In the present work, we examined the statoconia in the inner ear of the hagfish Paramyxine nelsoni intense to explore it auseful index in hagfish’s age determination. 本研究以纽氏副盲鳗为材料, 检视存在于其内耳的耳石是否可能成为为盲鳗定龄的依据。
- Conclusion Our study seems to be feasible in establishing the estimation standard for skeletal age determination using developmental metaphysis and anthropometry. 结论根据发育等级特征及测量学方法建立骨龄评估标准可行，可望得到推广。
- Problems existed in the Antarctic krill age determination were introduced and the methods used in the krill population age structure analysis were reviewed. 本文对国际上有关南极磷虾（Euphausiasuperba）的寿命和年龄鉴定研究的现状、研究过程中所存在的困难和问题进行了分析和探讨，对各种不同的磷虾年龄鉴定方法的特点和存在的问题进行了评述
- By the known data of isotope age determination, Nanhuaian time-structure frame was principally set up with the top boundary about 700 Ma and bottom about 800 Ma. 综合已有同位素测年数据，初步建立起南华纪年代构造格架，确立南华纪底界年龄为800 Ma左右，顶界年龄为700 Ma左右。
- Radioactive ray is material thing. 放射线是实际的物质。
- The exact age determination of the early Pleistocene hominid remains is important for understanding the origin, dispersal and evolution of early human in China. 摘要我国早更新世古人类遗址时代的确定对于认识早期人类起源、扩散与演化具有重要意义。
- It is characterized by high metallogenic elements and high heavy minerals and altered fractural rock type Au ore body(Yuershan).Isotopic age determin... 断层倾角大于层状矿脉系，估计在深部会切错矿体，因此在断层深部上盘应存在着找寻工业矿体的远景。
- Radium and uranium are radioactive elements. 镭和铀是放射性元素。
- The Qom Formation is the main objective beds for oil and gas exploration of the basin, thus, correct age determination of the Formation is of great significance. 对伊朗中伊朗盆地卡尚地区库姆组的微体化石样品分析,不仅发现了新的有孔虫和介形虫化石组合,而且还首次发现了较丰富的钙质超微及少量的沟鞭藻化石。
- A certain discharge of possible radioactive effluent. 一定量的可能有放射性的废水。
- Its age determined by Rb-Sr isochron is 306 Ma, suggesting that it was formed at Hercynian. 据Rb-Sr等时线测定,其年令值为306Ma,说明它形成于海西期。
