查询词典 quaternary

The birthplace of migrating birds had been a controversial problem for a long time. Based on comparision within winter habitat, reproduction habitat of Grus nigricollis, reproductive physiology and the upheaval of Qingzang Plateau in the Quaternary Period. We concluded that reproductive habitat was the birthplace of the bird species.

迁徙鸟类的种系发源地一直是个有争议的问题，本文依据黑颈鹤的越冬生境与繁殖生境的对比，以及青藏高原隆升与第四纪冰川的先后、动物繁殖生理等不同证据推断，繁殖地是鸟类迁徒的种系发源地。

Ma, the clay mineral assemblage among Quaternary loess-soils, Hipparion Red-Earth, and Miocene loess-soils shows similar components, mainly consisting of illite (55-80%), kaolinite (7-20%), chlorite (4-13%), smectite (2-23%) as results calculated by comparing major peak areas.

主要研究结果和认识如下： 1、定性和半定量分析结果表明，22.0MaBP以来，黄土高原地区风尘堆积中的粘土矿物组成基本上是一致的，主要以伊利石为主，其次为绿泥石、高岭石和蒙皂石以及少量的混层矿物。

The PEI grafted on the surface of nylon was modified by the alkyl halide such as bromohexane and iodomethane,to give high-molecular-weight antimicrobial quaternary ammonium salts.

尼龙6用4-溴丁酰氯活化，再与高分子聚乙烯亚胺在有机溶剂中进行反应，使PEI共价接枝在载体上，然后用卤代烷对接枝在尼龙6上的PEI进行烷基化反应，使其形成具有杀菌功能的高分子季铵盐，制备出尼龙树脂固定化的高分子抗菌杀生剂。

The nylon was activated with organic functional groups,and after that reacted with high-molecular-weight polyethyleniminein the organic soleent. PEI was grafted covalently on the surface of nylon. The PEI grafted on the surface of nylon was modified by the alkyl halide such as bromohexane and iodomethane,to give high-molecular-weight antimicrobial quaternary ammonium salts.

摘 要：尼龙6用4-溴丁酰氯活化，再与高分子聚乙烯亚胺在有机溶剂中进行反应，使PEI共价接枝在载体上，然后用卤代烷对接枝在尼龙6上的PEI进行烷基化反应，使其形成具有杀菌功能的高分子季铵盐，制备出尼龙树脂固定化的高分子抗菌杀生剂。

Additionally, the spontaneous decomposition from (220) surfaces to {112} facets is confirmed and irrelated to the substrates adopted. The effects of Ga content on lattice vibration modes are discussed in the quaternary 〓 films firstly.

系统地研究了不同硒化温度和退火时间以及Ga含量x等因素对薄膜性能的影响，证实了（220）自发分解现象，而且这种自发分解现象并不受衬底的影响。

Key words: natural polymer; multifunction water treatment reagent; isoquinoline quaternary ammonium salt; relative viscosity.

关键词］天然高分子；多功能水处理剂；异喹啉季铵盐；相对粘度

By weight loss measurements and electrochemical method, the inhibition and adsorption behavior of isoquinoline quaternary ammonium salt on A3 steel in 1mol/L HCl was studied.

采用失重、电化学法研究了异喹啉季铵盐在 1mol/L盐酸溶液中对A3钢的缓蚀行为及吸附规律。

Years 9 28, in the color of shares issued on the related party transactions bulletin, bulletin said:"According to a resource block in the first stage of geological work carried out by the result, the block now proven high-quality bauxite resources amounted to 160 million tons (Al2O3 an average grade of 37.91 percent, the average ratio of 12.18 Al-Si), according to China Nonferrous Metals Industry Association in January 2007 issued a "certificate of identification of scientific and technological achievements, Lao province of Champasak帕克松area is Quaternary basalt bauxite LATERITIC Sanshui bauxite weathering crust type, with abundant resources, the exploration and exploitation conditions are better, obviously the characteristics of the anticipated benefits.

二千零七年9 28在对关联方交易的公告已发行股份的颜色，公报说：&据美国地质工作的资源块的第一阶段所进行的结果指出，现在证明块高质量的铝土矿资源达160万吨（氧化铝的百分之37.91，在12.18铝硅平均比例平均成绩），2007年1月根据中国有色金属工业协会发布了科技成果鉴定&证书老挝的占巴塞省帕克松地区第四系玄武岩红土型三水铝土矿风化壳型铝土矿资源丰富，勘探和开采条件，更好，很明显的预期效益的特点。

The growth of C. japonica grow well in the Limy dolomite, then in quartz sandstone, sandstone and shale with coal, purple sandstone and metamorphic sandstones, but poor in the quaternary clay.

日本柳杉在灰质白云岩上生长最好，在石英砂岩、煤系砂页岩、紫色砂岩、变质砂岩上居中，而第四纪粘土生长较差。

Main compositions: Quaternary ammonium salt, ahurian Angelica Root, menthone and Tannic Acid.

主要成份：季铵盐、白芷、薄荷酮及鞣酸等，内含天然渗透性因子。

And he is one of the few scouts who are occasionally sent out to have dealings with other peoples.

而他也是少数的几位偶尔会被派出去和外界人打交道的巡逻人员之一。

The sons of Hebron: Korah, Tappuah, Rekem and Shema.

希伯仑的儿子是可拉，他普亚，利肯，示玛。