查询词典 ion-pair

Oxygen ion beam of 6.0 MeV was selected as incident ion, and the ERD spectra were detected at the angle of 30°, then the cross-sections for O to D and T are Rutherford cross section under this experiment condition.

以6.0 MeV O粒子作为入射粒子，在30°方向上探测反冲粒子，在此实验条件下，O粒子对D、T的碰撞截面为卢瑟福截面。

The impo rtance of so lu t ion s of A lgeb raic R iccat i Equat ion s are simp ly show n. Som e good num erical m ethods fo r AREs are described, st ressing som ew hat at the wo rk of the au tho r. Fu rther study t rends are also m en t ioned.

简单说明解两类代数R iccat i 方程的重要意义，简要综述自80 年代以来在发展它们的数值解法方面的一些研究进展，偏重作者在这方面所做的一点工作，指出今后在这方面研究的方向。

Low energy ion implantation technology was used in mutation breeding of Hericium erinaceus.The growth speed of the Hericium erinaceus hypha is as an index to study the influence of the pulse lasting time of N~+ ion implantation.

利用低能离子束生物技术对猴头菌进行诱变选育，通过分析N+离子注入后猴头菌丝体的生长速度，研究脉冲时间对N+离子注入猴头菌丝体的影响。

The extraction and stability of the pigments in Tussilago farfara L. were studied. The experimental results showed that the pigments could be solved in acetone. The stability of the pigments is good when pH is within 3~9; the oxidizing agents, reducing agents and common food additives have little influence on its stability; it is react too much with Fe(superscript 3+) ion, and Na(superscript +) ion showed a certain increment effect on the color; the heat performance of the pigments is good when under 60℃.

研究了款冬花色素的热稳定性、氧化还原稳定性和pH值稳定性，并对常用的几种食品添加剂对款冬花色素的稳定性进行了探讨，结果表明：款冬花色素易溶于丙酮，属于脂溶性色素；在pH＝3～9时，款冬花色素的稳定性较好；氧化还原剂及食品添加剂对其稳定性影响不大，Fe(上标 3+)金属离子对其影响显著，Na有增色作用；水浴温度在60℃以下色素的热稳定性较好。

A HPLC/ESI-MS method studied on relative compounds of chloramphenicol succinate ;Column:an Agilent ODS column 250×2.1mm;Mobile phase: 0.05M ammonium formicate buffer PH4.0/acetonitrile=80/20 ,flow0.2ml/min, and λ276nm;Mass:trap ion mass;source:ESI;Scan mode:negative ion scan.

液相色谱条件为色谱柱：Agilent C18 2.1mm×250 mm；流动相：流动相0.05M甲酸铵用甲酸调pH至4.0 /乙腈=80/20，流速0.2ml/ min，检测波长276nm；质谱条件为离子肼电喷雾质谱仪，离子源：ESI；检出模式：负离子检测。

Chamber, in situ analy sis of low ener getic ion sputtering and high ener getic ion

复旦大学现代物理研究所基于加速器的原子物理和原子核物理实验室

The either titrate in titration process is nodded, the affiliation of the chroma of the Ag+ in solution and titration agent bulk can determine by the potential of two electrode the value is obtained at the same time, thereby applicable is multivariate and corrective the content that the law gets ion of the avery kind of in mixing haloid ion by corresponding titration curve.

在滴定过程中的任一滴定点，溶液中Ag+的浓度和滴定剂的加入体积可由两个电极的电位测定值同时获得，从而可应用多元校正法由相应的滴定曲线求得混合卤素离子中每一种离子的含量。

Experiments are conducted on the effect of different types and different molecular structures of polymers on HPAM removal existed in solution or sewage. It is found out that only cationic polymer has a better removal effect of HPAM among the non-ion, amphoteric ion and hydrophobical cation polymers, especially the DMDAAC cationic polymer has an optimal result. The removal capacity to HPAM can be further improved by using appropriate molecular weight and cationic capacity and gas floatation technique.

试验研究了不同类别及分子结构的聚合物对溶液或污水中HPAM的去除效果，发现非离子、两性离子、疏水改性阳离子聚合物对HPAM无去除作用，只有阳离子聚合物去除效果较好，其中尤以DMDAAC系列阳离子聚合物效果最优，而适当的分子量和阳离子化度以及气浮技术均可以进一步提高其对HPAM的去除率。

Ion mixing in IBAD holds high bonding strength and ion bombardment leads to good coating density.

研究表明离子束溅射可获得以SP〓结构为主的高硬度低摩擦系数碳膜。

Two qina ligands chelate a cobalt ion by 0 and N atoms and two DMSO ligands coordinate a cobalt ion by two O atoms at an axis. The complex formed inerratic octahedron configuration, and π-π stacking weak interaction was observed between the molecules.

配合物为单斜晶系，P2(1)/C空间群，2个qina配体以氮原子和氧原子与Co离子螯合配位，2个DMSO以氧原子与Co离子轴向配位，形成规则的八面体构型配合物，分子之间存在π-π堆积弱相互作用。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐