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So, the brucite dusts may react with and be dissolved partly in soluble ammonia salts of the human body and ammonia ions of body liquid.

因此，人体内的可溶性铵盐和体液中存在的铵离子可与水镁石粉尘作用并使之部分溶解。

The joint toxicity of copper, cadmium and zinc ions to tadpole of Bufo bufo gargarizans was determined using additive index method.

以蟾蜍蝌蚪为实验材料，采用联合指数相加法，研究了重金属铜、锌和镉离子对蟾蜍蝌蚪的急性毒性和联合毒性效应。

Higher Ca distributed in bulliformcell than in mesophyll cell and bundle sheath cell of dune reed, higher Mg distributedin mesophyll cell and higher K, Na and Cl distributed in sheath cell HigherNa and Mg distributed in mesophyll than in bulliform cell and bundle sheathcell of light salt meadow reed, and higher K, Ca and Cl distributed in itsbundle sheath cell. Higher Na and Mg distributed in bulliform cell than in mesophyllcell and bundle sheath cell of heavy salt meadow reed, higher K, Ca and Cl distributedin its mesophyll cell. This paper discussed the distribution conditions of theabove five ions in leaf cell of the four reed ecotypes and the meaning ofphysiological adaptation to habitat in detail.

沙丘芦苇的泡状细胞内Ca分布较叶肉细胞和鞘细胞高，叶细胞内Mg分布较高，在鞘细胞内K，Na和Cl布较高；轻度盐化草甸芦苇叶肉细胞内分布了较多的Na和Mg，在鞘细胞内K，Ca和C1分布较叶肉细胞和泡状细胞高；而重度盐化草甸芦苇泡状细胞内分布了较多的Na和Mg，叶肉细胞分布了较多的K，Ca和Cl；详细讨论了以上五种离子在不同生态型芦苇叶片内不同细胞类型的分布状况与环境适应的意义。

Base frequency of the buncher is 6 MHz, it can be used in bunching light ion beams as p or D, as well as heavy ion beams up to Cs, with beam utilization efficiency of 50 %—60 %, and pulsed beam width of light ions less than 1 ns.

聚束器基频为6MHz，可以对质子、氘直至铯等所有离子束进行脉冲聚束，束流利用效率可达50％—60％，质子等轻离子脉冲束的脉冲时间宽度小于1ns。

To create a mere three atoms of element118, the scientists spent two months bombarding the californium target with30 billion billion calcium ions.

为了创造这微不足道的3个原子，科学家花费了2个月时间，用30万亿亿个钙离子来轰击锎离子。

The researchers fired a beam of calcium ions, each containing 20 protons, into a target of californium, a highly radioactive synthetic substance with 98 protons.

他们轰击了一束每个原子中含有20个质子的钙离子，得到了锎，一种原子核中含有98个质子的更高级人造放射性元素。

By means of UV-vis spectrophotometer, the complex abilities of calix [4] arene ligands with metal ions were researched, and the effect of solvent systems was discussed.

使用紫外-可见分光光度法研究了杯[4]芳烃配体与金属离子的络合性质，并考虑了溶剂对配体与金属离子配位的影响，评价了杯[4]芳烃的不同取代基对过渡金属离子及稀土离子的配位作用。

Experimental principles, instruments and techniques of studies based on selectivity recognition of calix [4] arene derivative complexing with metal ions, especially to some transition metals were described.

阐述了杯[4]芳烃衍生物对金属离子特别是过渡金属离子选择性识别的实验方法和原理。

It would be expected that carbonium ions are very susceptable to nucleo-philic attack by water.

碳正离子对于水的亲核作用非常灵敏，这是意料中的事。

Carbonium ions in solution derive much of their stability from solvation effects and are formed more easily in more polar media.

正碳离子在溶液中由溶剂效应获得更高的稳定性，而且在极性较高的介质中更容易形成。

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