1·Design of quaternary Schmitt circuits.
四值施密特电路设计。
2·We know little of a quaternary compound.
我们对四元化合物了解得很少。
3·The Quaternary sediments are largely undeformed.
第四纪的沉积物大部分未变形。
4·In Quaternary, some faults showed a right-handed slipping.
部分断裂到第四纪表现为右行走滑。
5·Review and prospects of Quaternary Glaciation research in China.
中国第四纪冰川研究的回顾与展望。
6·Most Quaternary saline lakes occur in West and Northeast China.
第四纪盐湖主要分布于我国西部和东北部。
7·The activity of igneous rocks mainly concentrates in Neogene and Quaternary.
火成岩活动主要集中在晚第三纪和第四纪。
8·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。
9·The Quaternary glaciation started just a few million years ago – and is still going on.
第四纪始于几百万年以前，并延续到现在。
10·Maodong Canyon, the typical karst landform, is the relics of the quaternary glacier.
卯洞峡是第四纪冰川遗址，典型的喀斯特地貌。
1·Based on TTL technique, the designed quaternary Schmitt circuit is simulated with PSPICE and is proved to have the ideal Schmitt function.
基于TTL技术设计的四值施密特电路已用PSPICE模拟证明了具有理想的施密特电路功能。
2·Eleven solid quaternary complexes of rare earth perchlorate with diphenyl sulfoxide (L) and benzoic acid (L') have been synthesized and characterized.
本文首次合成并表征了高氯酸稀土与二苯基亚砜、苯甲酸的十一种四元配合物。
3·The electronic structure of a quaternary alloy has been investigated using EHT band calculation method.
用EHT紧束缚能带计算方法，研究了四元合金的电子结构。
4·Some of the cross sections are used to stand for a certain component, and semiternary phase diagrams are ploted, then a quaternary phase diagram shown in a tetrahedron is obtained.
提出了利用正四面体的某些截面表示一定组成，得出相分离曲线和相分离曲面，并能较好地描述四元体系。
5·Practices are arranged based on the quaternary facets: picture description, passage writing, simple narrative and various kinds of writing formats as exemplified in practical writing.
应该从以下四个方面练习：景色描述，文章写作，简单记叙以及各种各样的以练习写作为例的写作形式。
1·"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。”
2·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。
3·The cool temperatures of the Quaternary may have allowed our brains to become much larger than those of our of hominid ancestors.
第四纪的凉爽气温或许让我们的大脑比人类远祖的大脑更大。
4·It's evident that the ice sheets have gone through multiple stages of growth and retreat over the course of the Quaternary.
很明显，在第四纪，冰层已经历过生长和消融的多个阶段。
5·Review and prospects of Quaternary Glaciation research in China.
中国第四纪冰川研究的回顾与展望。
1·Position quaternary predicate shape, edit reading, connect roles, and add constraints.
定位四元谓词形状、编辑读数、连接角色和添加约束。
2·The present invention relates to a quaternary chrome series catalyst for ethylene trimerization to prepare 1-hexane.
本发明涉及一种四元铬系催化剂，用于乙烯三聚制备1-己烯。
1·The preparation methods of quaternary ammonium salt of chitosan at home and abroad, meanwhile were introduced, and heir advantages and shortcomings were compared.
对目前国内外壳聚糖季铵盐的制备方法加以介绍，并比较了它们的优缺点。
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。
3·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。
4·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。
5·Montmorillonite was ion exchanged with quaternary ammonium salt, which was intercalated into the crystal layers of MMT.
用长链季铵盐对蒙脱土进行离子交换反应，季铵盐嵌入到蒙脱土的层间。
1·Antibodies respond to the quaternary structure of proteins so their potential to cross-react with an alloantigen is very low.
抗体对蛋白质的四级结构产生应答，因此它们对同种异型抗原发生交叉反应的能力较弱。
2·Some proteins consist of more than one polypeptide chain, and the association of these subunits in the protein gives rise to the quaternary structure.
一些蛋白质不只是由一个多肽链组成的，并且这些蛋白质亚基的结构产生了四级结构的。
3·The structure of many proteins is mostly described in three levels, but a quaternary structural level must be considered if the protein consists of more than one polypeptide chain.
许多蛋白质结构主要用三种标准描述，但是如果蛋白质包含一个以上的多肽链，就必需考虑四级结构标准。
4·A great many proteins, especially enzymes, are oligomeric and consequently possess quaternary structure.
很多蛋白质尤其是酶类，是低聚物，因此拥有四级结构。