中离子碳烯类似于氮杂环碳烯。
以干橙皮为原料，研究了离子交换树脂法提取果胶的多种影响因素、工艺条件以及除杂问题。
The ion exchange resin (IER) has been used to investigate the influencing multifactors, pectin extraction technique from orange peel and pectin purification in this paper.
模拟实验给出了不同气隙情况下，空载和负载放电时，等离子体区的杂散场和铁芯磁化曲线测试结果。
Measurements of stray field within the plasma region and magnetizing curve of the iron core were made in a model device with variation of air gap size and under load and unload discharge conditions.
一种配位(络合)化合物，其中的金属离子与氮、碳或氧等非金属原子结合生成有配位共价键的杂环。
An organic coordination (complexing) compound in which the metal ion is bound to atoms of nonmetals, e. g. nitrogen, carbon, or oxygen, to form a heterocyclic ring having coordinate covalent bonds.
亚胺基杂环丙烷季铵盐的阳离子，一定是按协同反应的方式开环的。
The aziridinium ions must all be opened by a concerted process.
吡喃盐是指含有六元氧杂环正离子结构的有机芳香化合物，因其独特的化学及物理特性而具有非常广泛的应用价值。
Pyrylium salts are a type of organic aromatic compounds with one or more six-numbered oxoheterocyclic cations, which are practically valuable owing to their peculiar chemical and physical properties.
用质谱法、核磁共振波谱法、红外光谱法等，确定了未知氮杂环季铵盐型阳离子表面活性剂的结构。
Structute of nitrogen heterocyclic ring quaternary ammonium salt cationic surfactants was identi fied by mass spectrography, nuclear magnetic resonance spectra, infrared spectra and etc.
本文报告了以酒厂废料杂醇油为原料，在催化剂浓硫酸或阳离子交换树酯存在下，经加热回流与冰醋酸反应生成以乙酸异戊酯为主的混合酯。
It is reported that fusel oil can be used for synthesising mixing esters mainly inclusding amyl acetate when it is heated and back-flowed with Catalyst oil of vitriol or canon exchange resin.
在杂散场测量与软件补偿实验中，发现同心圆逆磁线圈感应的杂散信号主要来自垂直场、涡流电流、等离子体电流和纵场电流的变化。
In the experiments of measurement and software compensation of diamagnetism, it is found that stray fields mainly come from the vertical field, plasma current and eddy current.
电子对占据了金属离子的某个杂化轨道。
This electron pair occurs one of several equivalent hybrid orbitals on the metal.
多氮杂大环能与许多金属离子形成稳定配合物。
Polyazamacrocycles are known to form stable metal chelate-complexes.
一种基与中心金属离子(如二价铁离子)结合，形成杂环。
The attachment of a group to a central metallic agent such as iron with two valences to form a heterocyclic ring.
多氮杂大环与许多金属离子能形成稳定的络合物。
Polyazamacrocycles are known to form stable metal chelate complexes.
分析了装置存在的各种杂散场对等离子体平衡的影响。
The influence of various stray fields on plasma equilibrium has been analysed…
酒钢选矿厂采用阳离子反浮选工艺对焙烧磁选系统进行了提质降杂改造。
The cationic inverse flotation techniques on the roasting-magnetic separation system is adopted to improve quality and reduce impurities in dressing plant of Jiusteel.
实验表明，环向磁场杂散分量约为纵场的万分之一，导体壳和平衡场基本上能保证等离子体的平衡。
Experiments showed that the stray component of toroidal field is about 10-4 of the field and the copper shell combined with an applied vertical magnetic field can keep the plasma in equilibrium.
实验表明，环向磁场杂散分量约为纵场的万分之一，导体壳和平衡场基本上能保证等离子体的平衡。
Experiments showed that the stray component of toroidal field is about 10-4 of the field and the copper shell combined with an applied vertical magnetic field can keep the plasma in equilibrium.
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