在溶液中

For a better understanding of the molecular and biochemical processes involved in orthophosphate uptake, two phosphate transporter cDNAs (OsPT2 and OsPT6) of rice are expressed in heterologous expression system.

根据对磷转运蛋白基因序列相似性和转录分析，推断水稻中含有13个Pht1家族成员，用于从土壤溶液中吸收磷以及植物体内磷的运输，其中磷转运蛋白基因OsPT2和OsPT6是Pht1家族中两个在缺磷和低磷诱导下强烈表达的基因。

The main contents of the thesis are summarized as followed:(1) The nucleation and growth mechanism of 3-D flowerlike ZnO crystals in ZnCl2-NaOH system was investigated through monitoring the crystal structure, morphology, and Zn concentration in reaction solution and at regular intervals.

本论文的主要内容包括：(1)三维花状ZnO微晶的生长机理研究以ZnCl2-NaOH为体系，通过跟踪反应过程中不同时间溶液中Zn浓度以及产物的物相和形貌，揭示了3-D花状ZnO晶体在液相反应中的成核、生长机理。

The results show that a MgSnO3·H2O conversion film is formed by treatment in the stannate solution at 90℃, and the immersion test and potentiodynamic polarization show that the corrosion resistance of the AZ91D alloy is improved to some extent.

结果表明：锡酸盐转化处理后合金表面形成了以MgSnO3·H2O为主要成分的转化膜，可对合金起到一定的防护作用；转化膜由细小的球形颗粒密积而成，颗粒之间存在间隙，它可以为化学镀镍的前处理过程提供良好的吸附条件；转化膜上的化学镀镍层组织致密、无缺陷， MgSnO3·H2O转化膜在镀镍层与基体之间起到过渡作用，镀层的磷含量达到9%，与基体结合良好；在3.5% NaCl (pH=7)溶液中的动电位极化测试表明，镀镍以后的合金在阳极极化过程中发生了明显的钝化，耐腐蚀性能进一步提高，对基体起到了较好的防护作用。

In the pH=7.00 phosphate buffer solution, the ethinylestradiol's electrical behavior has been studied in a detailsed way at the MWNT /graphite modified electrode. The results show that: the ethinylestradiol can generate a sensitive oxidation peak at about +0.550V on the MWNT /graphite modified electrode. The oxidative peak curent was linear to diethyl stilbestrol concentration over the range from 1.00×10-6 to 2.00×10-4 mol/L , the linear regression equation was ip= 2.4144+4.55×104cmol/L, the detection limit was 3.00×10-7 mol/L . The oxidation of ethinylestradiol was attributed to adsorption controlling process at MWNT /graphit modified electrode.

在pH=7.00的磷酸盐缓冲溶液中，利用MWNT/石墨修饰电极详细研究了乙炔雌二醇的电化学行为，结果表明：阳极扫描过程中，乙炔雌二醇在+0.550V出现一个灵敏氧化峰，该氧化峰电流与其浓度在1.00×10-6～2.00×10-4 mol/L的浓度范围内有良好的线性关系，线性回归方程为：ip= 4.14+4.55×104c，回归系数为：0.997，检测限为3.00×10-7 mol/L。

In this method,β-cyclodextrin epichlorohydrin polymer of 60-80 mesh, which has less background absorbance in ultraviolet and visible region compared to other ion-exchanger resins, was used to support direct adsorption of tartrazine from aqueous solutions to form a solid complex (tartrazine-β-CDP complex). The effects of pH, temperature, time and ionic strength on the β-CDP including tartrazine were determined.

在这个方法中，所利用的β-环糊精聚合物（60-80目）和离子交换树脂相比，在紫外和可见光区吸收很小，其作为固体相的支持体，并用於从样品溶液中分离收集柠檬黄，然后在435nm波长下直接用於测定。

Thermolysis of DM-DMI bis-carbamate was carried out in 3wt % solution of diphenyl ether at 254℃ for 5-6 hours, and the yield of DM-MDI is 61％ after purification.

而在第二步骤的热裂解反应中，在3wt ％二苯醚溶液中，控制反应温度在254℃，经反应5-6小时即得到DM-MDI，经浓缩及纯化后主产物之产率为61％。

Do not use the probes in the presence of corrosive gases or liquids, or immerse them in baths of molten zama or aluminium alloys without suitable protection.

不要在腐蚀性的气体或液体中使用探头，或把探头在没有适当的保护的情况下，浸入在熔化的化学熔铸液或铝合金溶液中。

Finally,a solution combustion synthesis of pure and indium-incorporated ZnO powder was performed by using metal nitrates as oxidizer agents and carbohydrazide as fuel.

在中性溶胶溶液中，所制备的ZnO沿着[0001]方向生长；而在在酸性溶胶液中，由于H~+与晶体表面的OH~-配合体反应，抑制了沿[0001]方向的生长，使得水平方向的生长更容易。

In Polymer, helix is a quite universal configuration Recent experiments show thatsome polymers such as bacterial flagellar filaments can form bistable helices in ionsolutions, which means that left handed helix and right handed helix can coexist in thesame environment The mechanism of this phenomenon has not been explainedsatisfactorily.

在高分子中，螺旋是一种很普遍的高分子组态。近来实验发现，一些高分子，如细菌鞭毛丝，在离子溶液中能够形成双稳态螺旋，即左螺旋与右螺旋在相同的条件下能够同时存在。

Moreover, the A-B-A triblock copolymer solution in a selective solvent, which is good for the block B, was explored. It was observed that the flowerlike micelles were formed, in which the central block B took on a loop conformation and the two end A blocks became a part of the micellar core. It was found that some of the soluble middle B blocks served as extended bridges between the small clusters by the poorly solvated end A blocks.

在A-B-A三嵌段共聚物溶液体系中，溶剂是链段B的良溶剂，是链段A的不良溶剂，此时我们得到了花型结构的胶束，其中花心是由链段A聚集而成，花瓣是由链段B形成的，而且在体系中也发现了有些胶束间存在着桥，并且在浓度很高时，体系出现了凝胶现象。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。