quaternary
adj. [数] 四进制的；四个一组的
n. 四；四个一组
n.
四，四个一组；
adj.
第四组中的组成部分，四进制的；
变形
复数：quaternaries
英英释义
quaternary[ kwə'tə:nəri ]
n.
last 2 million years
同义词：Quaternary periodAge of Man
the cardinal number that is the sum of three and one
同义词：four4IVtetradquaternquaternionquaternityquartetquadrupletfoursomeLittle Joe
adj.
consisting of or especially arranged in sets of four
"a quaternary compound"
同义词：quaternate
coming next after the third and just before the fifth in position or time or degree or magnitude
"the quaternary period of geologic time extends from the end of the tertiary period to the present"
同义词：fourth4th
词组短语
quaternary ammonium[石油]季铵；[生物]四级铵
quaternary ammonium salt季铵盐
quaternary period第四纪
quaternary system四进制，四元系统
quaternary geology第四纪地质学
quaternary structure四级结构
quaternary ammonium compound季铵化合物
双语例句
用作形容词(adj.)
The Quaternary sediments are largely undeformed.
第四纪的沉积物大部分未变形。
Industries based on brainwork or knowledge are called the quaternary industry.
以脑力劳动或知识为基础的产业被称为第四产业。
权威例句
Quaternary Ammonium and Tertiary Sulfonium Compounds in Higher PlantsLate-Quaternary Vegetation Dynamics in North America: Scaling from Taxa to Biomes
Standard Tertiary and Quaternary calcareous nannoplankton zonation
Quaternary ligand binding to aromatic residues in the active-site gorge of acetylcholinesterase.
Superconductivity in the quaternary intermetallic compounds LnNi 2 B 2 C
Range shift and adaptive response to Quaternary climate change
MODERN ANALOGS IN QUATERNARY PALEOECOLOGY: Here Today, Gone Yesterday, Gone Tomorrow?
Neotropical seasonally dry forests and quaternary vegetation changes.
Superconductivity in the iron-based F-doped layered quaternary compound Nd[O1 − x Fx]FeAs
Structural and Electrochemical Characterization of Binary, Ternary, and Quaternary Platinum Alloy Catalysts for Methanol Electro-oxi...
quaternary (adj.)
early 15c., "consisting of four parts," from Latin quaternarius "of four each, containing four," from quaterni "four each, by fours," from quater "four times," related to quattuor "four" (see four). Also as a noun, "the number four" (mid-15c.), from Latin quaternarius. In geological sense, attested from 1843 in English, proposed 1829 by French geologist Jules Pierre François Stanislas Desnoyers (1800-1887) as name for "the fourth great epoch of geological time," but because it comprises only the age of man, and the other epochs are many hundred times longer, not all accepted it.
1. This method does not produce or require the handling of corrosive quaternary ammonium hydroxides.
这一方法不产生或不要求处理腐蚀性的季铵氢氧化物。
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2. Praseodymium and neodymium could be deposited at lithium or quaternary ammonium amalgam electrode, but not at sodium amalgam electrode.
镨、钕在季铵汞齐电极和在锂汞齐电极上都能形成汞齐，而在钠汞齐电极上则不能。
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3. Review and prospects of Quaternary Glaciation research in China.
中国第四纪冰川研究的回顾与展望。
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4. Evolution of desert is one of important aspect of Quaternary paleoclimate and paleoenvironment research.
沙漠形成演化是第四纪古气候、古环境研究的重要内容之一。
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5. The natural thermoluminescence in Quaternary sediment has stored accumulated irradiated dose since the sediment deposited.
第四纪沉积物的天然热释光中储存有自沉积以来的累积辐射剂量。
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6. The key stage for this oil system is Neogene to Quaternary, and the trap forming episode corresponds to the oil generation time.
该含油气系统的关键时刻是晚第三纪末至第四纪，圈闭形成期与油气生成运移期相匹配。
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7. Using the relation of simple root cyclic codes and repeat root cyclic codes, the linear quantum codes that can be constructed from quaternary c.
利用单根循环码与重根循环码关系，确定出所有能由短码长的四元循环码构造的线性量子码。
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8. The results showed that as the mass ratio of polyether and polysiloxane grew higher in polyether polysiloxane quaternary ammonium block copolymer, the viscosity and foam height decreased.
结果表明，随着聚醚聚硅氧烷季铵盐嵌段共聚物中聚醚与聚硅氧烷的质量比的加大，香波的粘度和泡沫高度下降；
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9. The difference of ammonia, amido, amino group and quaternary ammonium salt, some common wrong expressions on them, and the valence state of phosphorus in some of its oxyacid were pointed out.
指出了氨、氨基、胺基及季铵盐的区别及其常见错误表述，以及磷的几种含氧酸中磷的价态，并着重指出没有“ 次亚磷酸”的叫法。
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10. Quaternary borehole differs from that of fundamental geology and hydrogeology as it has more complicated testing and experimental data.
第四纪钻孔与基础地质、水文地质钻孔有所不同，常有更为复杂的测试和实验资料。
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11. "It is a long time coming and marks a turning of the tide in how we approach these extinctions of the Late Quaternary," she says.
她指出：“这标志着在接下来的很长一段时间内，我们将转向如何处理晚第四纪的灭绝。
article.yeeyan.org
12. There are 10 groups of Quaternary volcano in China.
我国主要的第四纪火山可分为10群。
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13. This paper first reports the synthesis and applications in hydrolysis and etherification of a new polymer supported quaternary ammonium resin, which is an effective triphase catalyst.
本文首次报道一种新的高分子固载季铵树脂的合成及其在水解、成醚反应中的应用，此树脂是一种有效的三相催化剂。
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14. The quaternary fault in soilmass, as a kind of soilmass structure plane, become a new research field in geotechnical engineering.
将土体中的第四纪断层作为一种土体结构面，已成为岩土工程新的研究领域。
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15. D to study palaeontology in France, and he is a forerunner of Quaternary Geology in China.
他第一个发掘和研究了中国洞穴沉积以外的第四纪地层和化石；
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16. The most powerful of feedbacks in the Arctic is sea ice and snow cover, said Miller, the lead author on a paper about past "Arctic amplification" in the journal Quaternary Science Reviews.
在北极，反馈最强的莫过于海冰和积雪，米勒说，他是第四纪科学评论杂志中关于过去“北极的放大效应”一文的主要作者。
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17. The development scale, time span and geo-environmental information of the chenier plays a crucial role in the researches of Quaternary geology.
它的发育规模、时间跨度和所包含的地质古环境信息在第四纪地质研究中占有重要的位置。
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18. Several Quaternary faults have been found in the Yangtze River estuary by high resolution multi-trace seismic surveying.
高分辨率多道地震调查表明，在长江口及其附近海域发现数条第四纪断层。
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19. Four new types of organic siloxane surfactants with quaternary ammonium group have been obtained.
通过多步骤合成了四种含有季铵基的有机硅表面活性剂。
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20. It is used for the determination of trace quaternary ammonium salts in water.
并且将此试剂用于萃取荧光法测定水中微量季铵盐。
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21. Is a legacy of the Quaternary glacial ancient trees on Earth over 250 million years of history.
是第四纪冰川遗留下来的古老树种，在地球上已有250万年的历史。
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22. The datings show that most landslips occurred in Quaternary warm and wet climate stages.
同时，测年资料表明，大部分滑坡发生于第四纪暖湿气候期。
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23. In their study, the scientists looked at quaternary ammonium compounds (QACs) that are used in many household cleaning goods.
在他们的研究中，科学家验证了在许多家居清洁产品中使用的季铵盐化合物。
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24. Adsorption equilibrium on quaternary ammonium resin in uranyl sulphate solution, which is similar to composition used in uranium hydrometallurgy, was studied by chemical equivalent method.
本文采用化学当量法研究了季铵树脂在组成接近铀水冶条件的硫酸铀酰-硫酸钠溶液中的吸附平衡。
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25. The flocculating agent A is a quaternary ammonium type cationic polymer and the flocculating agent B is a cationic polymer with aminomethyl polyacrylamide as the basis.
絮凝剂A是一种季铵型的阳离子聚合物，絮凝剂B是一种以胺甲基聚丙烯酰胺为主要成分的阳离子聚合物。
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26. Quaternary research shows that, the past climate change has different periodityies in different levels and izcaused by different driving factors.
第四纪科学研究证明过去气候变化具有不同驱动因素所导致的不同层次的周期性变化。
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27. Quaternary research shows that, the past climate change has different periodityies in different levels and izcaused by different driving factors.
第四纪科学研究证明过去气候变化具有不同驱动因素所导致的不同层次的周期性变化。
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28. The Cenozoic Era is composed of Tertiary Period followed by Quaternary Period.
新生代是由第三纪和第四纪组成的。
-- 来源 -- 英汉 - 翻译样例 - 工程
29. Cationics are usually quaternary ammomium salts.
阳离子表面活性剂通常为季铵盐类。
-- 来源 -- 英汉 - 辞典例句
30. the Quaternary period
第四纪
-- 来源 -- 英汉 - 辞典例句
31. Quaternary System
第四系
-- 来源 -- 英汉 - 短句参考
32. The Quaternary sediments are largely undeformed.
第四纪的沉积物大部分未变形。
-- 来源 -- 英汉 - 辞典例句
33. quaternary ammonium salts
四级铵盐
-- 来源 -- 英汉 - 短句参考
34. Quaternary geochemistry
第四纪地球化学
-- 来源 -- 英汉 - 短句参考
35. the quaternary
第四市场
-- 来源 -- 英汉 - 短句参考
36. quaternate leaves; a quaternary compound.
四重花瓣；四元混合物。
-- 来源 -- 汉英 - 翻译参考
37. quaternary hybrid
四祖杂种
-- 来源 -- 英汉 - 短句参考
quaternary
