查询词典 quaternary

The research on stratigraphic correlation based on making stratigraphic Division with an important parameter well Bincan 1 in Haerbin-Suihua area by using regional label bed, lithologic character, electrical characteristics, palaeobiology and igneous rock ages shows that sedimentary Covers in this area have Mesozoic Erathem Cretaceous system Huoshiling formation, shahezi formation, yicheng formation, denglouku formation, quantou formation, qingshankou formation, nenjiang formation, Cenozoic Erathem Tertiary and Quaternary.

在运用区域标志层、岩性、电性、古生物和火成岩年龄等对哈尔滨—绥化地区宾县断陷第一口参数井宾参1井进行详细地层划分的基础上对本区进行了地层对比，研究表明本区沉积盖层自下而上发育中生界白垩系火石岭组、沙河子组、营城组、登娄库组、泉头组、青山口组及嫩江组，新生界第三系和第四系。

South China Sea ; late Quaternary ; paleoceanography ; high-resolution stratigraphy

南海；晚第四纪；古海洋学；高分辨率地层学

Ammonium Copper Quaternary is a novel wood preservative. DDAC, copper sulfate pentahydrate, ammonium hydroxide or ethanolamine were used to synthesize three different kinds of ACQ.

利用二甲基二癸基氯化铵、五水合硫酸铜、氨水或乙醇胺合成3种不同的氨溶烷基铜铵（ACQ，包括A型、B型、D型）。

These products include sodium percarbonate, percarbamide, 4Na 2SO 4·2H 2O 2·NaCl adduct, tertiary amine oxides, hydrazine hydrate, dihydroxy benzene, quaternary ammonium salt hydrogen peroxide and methylethyl ketone oxime.

介绍了近期国外过氧化氢在部分化学品合成中应用研究新进展，产品包括过碳酸钠、过碳酰胺、4Na2 SO4·2H2 O2 ·NaCl加合物、叔胺氧化物、水合肼、二羟基苯、季铵盐过氧化氢和甲乙酮肟。

Inorganic chemistry ; hydrogen peroxide ; review ; sodium percarbonate ; percarbamide ; 4Na 2SO 4·2H 2O 2·NaCl adduct ; tertiary amine oxides ; hydrazine hydrate ; dihydroxy benzene ; quaternary ammonium salts hydrogen peroxide ; methylethyl ketone oxim

无机化学；过氧化氢；综述；过碳酸钠；过碳酰胺； 4Na2SO4·2H2O2·NaCl加合物；叔胺氧化物；水合肼；二羟基苯；季铵盐过氧化氢；甲乙酮肟；合成；催化剂；质量；安定性；收率

Results Cuticular papillates,glandular hairs,peltate scales,and non-glandular hairs presented on the leaf epidermis of C.paliurus.Anomocytic stomata were confined to the lower epidermis.Large cluster crystals existed in the uppermost layer of palisade cells.Midrib included one closed vascular system and one additional vascular strand.Secondary veins are semicraspedodromous and form marginal loops,tertiary veins are percurrent,quaternary veins form orthogonal or polygonal areoles filled up by branched and freely ended veinlets.

结果青钱柳叶表皮有许多小乳突，腺毛，盾状鳞片和非腺毛表皮毛；气孔器不规则型，仅分布于下表面；靠近表皮的叶肉组织中有规律地分布含簇晶的细胞；主脉中维管组织环状，封闭，具有一个副维管束；二级脉在叶缘内分支，相互连接形成脉环，三级脉及顶型，脉间区内充满分支的自由结束的小细脉。

The lignin-quaternary/polyvinyl alcohol composite resin was made from lignin after phenolization and amination,using glutaraldehyde as cross-linking agent,PVA as carrier.

利用木质素为原料，经酚化、胺化改性后，以戊二醛为交联剂，聚乙烯醇为载体，合成了季铵型木质素/PVA复合阴离子交换树脂。

A new imidazolinyl intermediate is prepared from phenylacetic acid and diethylenetriamine firstly, and then they react with the solution of sodium chloroacetate into the imidazolinyl quaternary ammonium salt.

以二甲苯为溶剂，苯乙酸和二乙烯三胺为原料，经酰胺化和环化脱水合成了新型咪唑啉化合物，并用氯乙酸钠溶液对其进行改性得到了苯乙酸咪唑啉季铵盐。

To explore new synthetic methods, we set out a careful investigation of the reaction of benzimidazolium salt with many nucleophilic agents, including the active aromatic compounds and heteratom nucleophilic agents, and found that the quaternary C=N is not so active; when benzimidazolium salt is reacted with big nitrogen nucleophilic agent? phthalimide, it does not give the expected addition product, instead, produces N-alkyl phthalimide through alkyl-transfermation from benzimidazolium salt to phthalimide.

为了开发新的合成方法，研究了苯并咪唑盐与各种亲核试剂（活泼芳环与杂原子亲核试剂）的反应，发现苯并咪唑盐不与活泼芳环及杂原子亲核试剂发生2位加成反应；在与体积较大的位阻型N亲核试剂邻苯二甲酚亚胺反应时，未得到亲核试剂与极化的C＝N的加成产物，而是得到N烷基化的邻苯二甲酰亚胺，进一步研究表明，苯并咪唑盐将1（3）位N上的烷基转移给了邻苯二甲酰亚胺，并讨论了其反应机理和取代基，溶剂效应。

First, organic pillared montmorillonite were prepared in which three kinds of organic quaternary ammonium salts were used as pillaring agent. Physiochemical properties of organic pillared montmorillonites were characterized by XRD, FT-IR, TG-DTA. Furthermore their characters that have been testified are excellence.

首先用三种有机季胺盐作为柱撑剂制各出有机柱撑蒙脱石，并通过XRD、FT-ZR、TG-DTA等测试手段对其进行了表征，并且对制备的有机柱撑蒙脱石进行了性能测试，证明其性能优良，说明利用干法制备有机柱撑蒙脱石是切实可行的。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。