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- quarternary quantic 四次式
- Mt. Lushan with a lot of typical remains of glacier is the birthplace of the theory "Quarternary Glacier in China". 庐山是“中国第四纪冰川”学说的诞生地,是冰川遗迹最典型、最集中的山体。
- Quarternary From approx. 1 million years ago to the present; includes Pleistocene, Holocene/recent. 第四纪从一百万年前持续至今的一个地质年代,包括更新世以及全新世(近代)。
- Quarternary sand stratum development, with surface run-off directly charging the underground water exists. 第四系砂层发育,地表水对地下水有直接补给关系。
- In the Tathang and Yan Mountains,incised and meandering valleys formed in Quarternary. 太行山、燕山山地中的深切曲流河谷形成于第四纪。
- There are four different commutative quarternary rings with identity: Galois field F_4, Z_4, F_2 + uF_2 and F_2 + vF_2. In 1996, V. Pless and Z. Galois域F4;整数模4剩余类环Z4;环F2+uF2和环F2+uF2.;V
- In part 2 of this thesis, we attempted to investigate the synthesis of quarternary carbon alcohols using [2,3]-Wittig rearrangement. 本论文第二部分工作对利用[2,3]-Wittig重排构建叔醇类化合物进行了初步尝试研究。
- Min Longrui, Chi Zhenqing, Zhu Guanxiang and Li Jinhong. 1998. New discovery in Nihewa bed, Hebei Province. Quarternary Sciences, (2) :183. 闵隆瑞;迟振卿;朱关祥;李金洪.;1998
- Liew, P.M. and Lai, T.H. (1993) Late Quarternary Evolution of Chou-Shui Fan-delta, Central Western Taiwan, Final meeting of IGCP Project 274, Belgium. 刘平妹,曾美惠,1994,台北盆地五股与板桥井样之花粉学研究,台湾之第四纪第五次研讨会暨台北盆地地下地质与工程环境综合调查研究成果发表会论文集,第234-237页
- The faults in this area are synsedimentary and it is difficult to find out direct evidences of their activities in the late Quarternary. 三角洲盆地边界及其内部的分割性断裂构造有同沉积活动属性,地表探测难以找出其活动的直接地质依据;
- Some self-dispersion cationic polyurethane emulsion was prepared with quarternary ammonium groups in macromolecule chain. 合成了一系列的阳离子型水性聚氨酯乳液。
- Betaine is a Quarternary alkaloid,which is widely found in animals,plants and microbe.As a methyl donor,it can modulate metabolism in animal. 甜菜碱是一种季铵型生物碱,广泛存在于动物、植物和微生物体内,是一种高效甲基供体,能调节动物体内渗透压、促进脂肪代谢和蛋白质合成。
- The Quarternary Triangle Mesh (QTM) structure based on spherical cell vertexes is offered so as to construct the sphere digital space for multi-resolution data management with it. 提出六边形网格上边界四元组的概念,利用QTM编码成功构建了H4-CI网格的数字空间,将六边形网格的空间分析进一步分解到四元三角形及子单元中处理。
- Conclusion: No interaction between fish and human Hbs.This will significantly contribute to understanding quarternary structure and molecular evolution of hemoglobin. 结论:鱼类血红蛋白与人血红蛋白之间没有互作,这一结果对了解血红蛋白的四级结构及分子进化都具有一定的意义。
- The gypsum deposit occurs mainly in theShashi Formation, Palaeocene epoch of Early Tertiary and the Wujiayu Formation, the early Pleistocene epoch of Quarternary are the second. 矿床主要赋存于早第三纪古新世沙市组,次为第四纪早更新世伍家峪组。
- It seems that aves, teleost and mammal hemoglobins select different residues in size in their evolutionary course forming different quarternary structures to adapt the binding of different organic phosphate effectors. 三类血红蛋白四级结构的微妙差异与它们的协同效应中有机磷效应物的分子大小和形状不同有关 ,鸟类、硬骨鱼类和哺乳类血红蛋白似乎在进化过程中选择了不同大小的残基而进化形成稍有不同的四级结构 ,从而适应与不同的有机磷化合物相结合。
- This research synthesizes a quarternary ammonium salt of honey, with the purpose that the honey can both retain the hydrophile of the glucide and gain new certain properties of cationic surfactant. 对蜜糖进行了季铵化合成,希望在保留糖类亲水性的同时具备阳离子表面活性剂的某些性质。
- The function of pyrochlore in piezoelectric ceramic of PMSN quarternary system to properties was studied by XRD,SEM and electric properties examination, and the method to do with was discussed. 通过X射线衍射、扫描电镜及电性能测试,分析了PMSN系压电陶瓷中焦绿石相对材料性能的影响,讨论了解决的办法;
- This research synthesizes a quarternary ammonium salt of honey,with the purpose that the honey can both retain the hydrophile of the glucide and gain new certain properties of cationic surfactant. 对蜜糖进行了季铵化合成,希望在保留糖类亲水性的同时具备阳离子表面活性剂的某些性质。
- To investigate the rules governing the dis-tribution and concentration of agate in the Quarternary of Dongting Basin is the key to solve the problems of the formation and development of the basin. 研究洞庭盆地第四系中玛瑙的分布与富集规律,是揭开盆地生成与发展的重要途径之一。