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The molecule Chla consists of porphyrin and phytol, with the magnesium ions being complex at the center of the porphyrin.

Chla的分子结构主要是由卟啉环和叶绿醇组成的，在卟啉环的中心络合了镁离子。

Phytosterol is a kind of substance of physiological activity, which is directly extracted from plant through supercritical carbon dioxide extraction technology. Therefore, it does not contain any unidentified compositions such as organic solvents and metal ions, etc. It can be widely used in the industries of medicine, food and feed etc.

植物甾醇是一类具有生理活性的物质，采用超临界二氧化碳萃取技术直接由植物中提取而得，所以不含任何有机溶剂及金属离子等不明成分，能广泛应用于医药，食品，饲料等行业。

Vanadium ions are implanted into Pilkington Activ Glass with different energy and dose, and annealed at different temperature to improve the superhydrophilicity.

其表面的TiO2薄膜的光催化性和亲水性性能都很稳定，但亲水性的光致响应时间较长。

They avoid heavy salt loads through a combination of selective accumulation of ions, ion compartmentalization, salt excretion and salt exclusion, accumulation or synthesis compatible solutes which are mainly pinitol and mannitol for maintaining osmotic balance, and promotion of antioxidative to scavenge reactive oxygen species.

红树植物具有盐腺、叶片肉质化等形态特征，通过离子选择性积累、盐分区域化、泌盐和拒盐等机制降低体内的盐分浓度，积累或合成渗透调节物质来维持渗透平衡，增强抗氧化系统以清除活性氧。

The effects of Cu(superscript 2+) and Fe(superscript 3+) ions on the interaction of piperine with BSA were also discussed.

讨论了共存金属离子Cu(上标 2+)、Fe(上标 3+)对胡椒碱与BSA相互作用的影响。

With the different dead forms of planarian, the results suggested that these kinds of ions be divided into three types, and planarian be used as a bioindicator for heavy metal pollution.

试验结果表明：这些重金属的作用应属于3种类型，涡虫作为重金属污染的指示生物基本可行。

This is due to the highly polarizable oxide ions in the heavy metal glasses and the high polarizability of their cations, and this leads to a high polarizability of the whole molecule and easy distortions of the electron density in a strong electromagnetic field.

这是由于高度极化氧化物离子在重金属眼镜和高极化其阳离子，这导致高极化整个分子和容易扭曲的电子密度，在强电磁领域。

This part introduce microporous zeolite compounds , especially the zeolite-like compounds which were developed by Yaghi et al by using thermally stable aromatic polyacid and metal ions as second building unit .

这部分介绍了微孔的类分子筛化合物，特别是 Yaghi 等利用刚性和热稳性本身比较好的芳香多酸和多碱配体和金属离子作为建筑单元发展的的第三代类分子筛，即：金属—有机框架。

Polyatomic ions containing oxygen, such as carbonate and sulfate, are called oxyanions .

多原子含有氧离子，如碳酸盐和硫酸盐，被称为

The adsorptions and desorption, the complexing and dissociation, and the precipitation and solution were deemed as main chemical processes of heavy metal ions and polyvalent oxacid radicals in soil.

为了明确土壤对这些离子的缓冲能力和容量，以及进入食物链的数量和速率，当前则宜侧重于上述离子在土壤中的形态及其转化条件的研究。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。