离子对

As a solvent, it was mixed with various quantity of pigskin collagen powder. During the dissolution, three kinds of heating methods were applied. The one was be heated in water bath directly, the second one was be heated in water by microwave radialization and the third one was be heated by microwave radialization directly.

通过普通水浴加热，微波辐射水浴加热和微波直接辐射加热三种方式研究了离子液体对胶原蛋白的溶解能力，对不同质量浓度的溶液进行傅里叶变换红外测定，分析溶液中的胶原蛋白结构的变化，最后，对溶液进行再生得到皮胶原蛋白膜，并进行红外分析。

However, theseare favourable to only mono-or bi-borides, but not for borides with complex struc-ture such as Cr_5B_3 or W_2B_5. The coefficient of S_c for alloy of CsCl structuredeviating from Bragg's S_c is directly proportional to charge transfer in alloy.

对CsCl型合金，S_c对Bragg定律的偏离系数γ和合金中电荷转移量成正比，后者越大表明金属键越强，则合金对离子的阻止本领越大，这与实验结果是吻合的。

In others with double-armed receptors, the probes 4-(N,N-bisacetoxyethylaminomethyl)-7-methoxycoumarin.(B3) and 4-N,N- bis(diethylaminodithiocarboxyethyl aminomethyl-7-methoxycoumarin (B4) with pronounced fluorescence enhancement response to special heavy and transition metal ions were proposed as PET mechanism; for those with double-armed receptors following ICT mechanism, their performances are influenced by not only the structure of the receptors but also the attaching position of it.

双臂香豆素类荧光分子探针体系中，我们研究了含有不同杂原子的识别基团对PET型荧光探针识别性能的影响，优化了探针的选择性，得到了可以选择性识别某种过渡金属和重金属离子的荧光增强型分子探针4--7-甲氧基香豆素(B3)和4--7-甲氧基香豆素B4而在ICT型荧光探针的研究中，我们发现具有不同杂原子的识别基团可以对识别性能产生影响的同时，连接位置的改变也对识别能力有很大的影响。

Aminobutyric acid in tea was extracted, isolated and determined. Water achieve a better effect than ethanol in extracting γ-aminobutyric acid, and γ-aminobutyric acid content was enhanced by 20%; 732 positive ion resin columns (2.5×50cm) was used to isolate, citric acid and ammonia water were used as elutes, based on pH linear gradient. Results indicated that γ-aminobutyric acid inelute could reach 39%; thin layer scanner could measure the content of γ-aminobutyric acid.

对茶叶中γ-氨基丁酸的提取、分离及检测方法进行了研究，分别采用水和乙醇作为提取溶剂，结果发现用水提取能达到更好的效果，γ-氨基丁酸含量提高20％；同时采用离子交换树脂对γ-氨基丁酸提取液进行分离，提取液上732阳离子树脂柱(2.5 ×50cm)，使用柠檬酸和氨水缓冲液进行pH线性梯度洗脱，洗脱液中γ-氨基丁酸最高浓度达39％；采用薄层扫描仪对γ-氨基丁酸的含量进行检测，研究并确定了检测的条件及参数。

The literature on the surface treatment to the piston ring groove is few, in this case, in view of piston ring groove"s unique feature and the movement request, the article introduced the salt bath tufftride and the high-frequency quenching surface treatment"s wear test and failure reasons.

离子氮化技术可以实现对窄缝结构件的表面强化，只要空隙≥1mm，就能够产生辉光，可以实现对活塞环槽的表面强化；激光淬火技术可以通过采用斜入射的方法实现对活塞环槽的强化。

The use of penicillins in veterinary medicine does not present the same risks of hypersensitivity in animals as in humans. Although incidents of hypersensitivity have been recorded in horses and dogs, there are other materials which are toxic to certain species, e.g. the ionophore antibiotics in horses.

在兽用药中使用青霉素并不存在人用时过敏的危险，虽然有偶然的关于马和狗对青霉素有过敏的报导，有些药物对某些动物甚至是有毒性的，如离子载体抗生素对马。

The optimal pH, which was the major factor influencing the adsorption of cadmium, was around 6.0; and the higher concentration of cations such as K~+, Na~+, Ca~(2+), Mg~(2+), the lower the sorbing capacity of the microalgae; This effect, on the other hand, also illustrated that the ion-exchange was the main adsorption mechanism.

衣藻和固定化衣藻对重金属镉的吸附在pH6.0左右达到最佳吸附，但pH的变化对衣藻吸附镉的影响较大；固定化衣藻则在极低pH值下吸附受到显著影响，在pH3-8的范围内，所受影响不大；背景阳离子的存在对二者吸附的影响非常显著，这从另一方面证明了离子交换为衣藻生物吸附的主要机制。

Presently in China para-aminophenol produced through the reduction of ferrous powder is mostly used as the raw material of paracetamol for export, however para-aminophenol produced by this process is of low quality with high content of ion of heavy metals. It cannot satisfy the request for product quality by foreign merchants.

目前我国出口的扑热息痛生产多以铁粉还原法对氨基苯酚为原料，而该法生产的对氨基苯酚产品质量差，重金属离子含量较高，远远不能满足外商对产品质量的要求。

The results showed that pollen in differentfamily or genus of plant have different requirements for phytohormones.The basicmedium of pollen culture supplemented with 2ppm NAA and GA_3 can promotes thepollen germination in Cruciferae.It has been proved that basic medium supplemtedwith 2ppm IAA and GA_3 has special effect on pollen germination and elongation ofpollen tube of woody plant in Rosace...

结果证明：不同科属的植物花粉对激素的要求不同，如在花粉萌发的基本培养基上加2ppm的NAA和GA_3混合液对十字花科植物花粉有促进作用，加2ppm的IAA和GAa_3混合液对蔷薇科木本植物花粉萌发和花粉管伸长有显著效果，而葫芦科植物的花粉在基本培养基上只要有无机盐离子就可以萌发，激素仍有促进花粉萌发的作用。

To make new adsorbents for processing heavy metals wastewater, black wattle bark with high content of tannin was reacted with formaldehyde to fix the tannin in the bark.

为充分利用我国丰富的黑荆树皮资源，满足现代重金属废水对吸附剂的更高要求，本文对黑荆树皮进行改性，并研究其对重金属离子的吸附性能。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。