查询词典 NA

In 20℃ and 40℃, the selectivity of Cd~(2+) to analcime is less than that of Na~+ to analcime; in 60~(2+) and 80℃,the selectivity of Cd~(2+) to analcime is more than that of Na~+ to analcime.

在20℃和40℃时，方沸石对Cd~(2+)的选择性小于对Na~+的选择性，在60℃和80℃时，方沸石对Cd~(2+)的选择性大于对Na~+的选择性。

LsNHX2 may locate on the vesicle, and may affect the salt secretion of Limonium sinense by vesicle trafficking, while LsNHX1 and LsNHX3 may locate on the center vacuole, and sequestrate Na+ into vacuole.

LsNHX1和LsNHX3可能定位于中央大液泡上，主要负责Na+的区隔化；沉默表达后，液泡中区隔化的Na+离子含量降低，胞质中的Na+离子含量增加，刺激盐腺泌盐，导致叶片分泌的Na+离子含量增加。

Na+ vacuolar compartment plays an important role in adaption to Na+ toxity in plants, especially in pehalophyte.

Na+液泡内区域化是植物特别是盐生植物适应Na+毒害非常有效的手段，液泡型Na+/H+逆转蛋白在这一过程中起重要的作用。

These results suggested that higher concentration of NaCl could cause the seed dormancy and accelerate the germination of ungerminated seeds. Perhaps there was a mechanism that the seed coat or embryo could prevent Na~+ from entering into the embryo so as to keep higher K~+ and lower Na~+/K~+ in the embryo. And it might be one of the physical mechanisms that the seed of Hibiscus hamabo Sieb.et Zucc. could resist high salinity stress. In addition, the annual seedlings of Hibiscus hamabo Sieb.et Zucc.

上述结果表明：高浓度的盐可以诱导海滨木槿种子休眠并促进盐胁迫解除后种子的萌发，这种机制可以使之避开不良的萌发条件，等到降雨使土壤溶液浓度降低再萌发，这是盐生植物的种子适应盐渍生境的一种有效方式；海滨木槿的种皮有阻挡Na~+进入胚的作用或胚具有某种拒Na~+的机制，使胚保持较高含量的K~+和较低的Na~+/K~+，这可能是海滨木槿种子耐盐的主要生理原因之一。

Brushing ABA or BA onto the upper leaves or ears of H. vulgare increased the Na+ content in the whole plant, especially in the ears, stems and sheaths, compared with that of NaC1 only treatment. The K(superscript +) content showed no significant changes in any treatments.

大麦根和冠中的Na含量均有增加的趋势，冠中Na含量增加幅度更大；冠中的Na主要是从叶片向叶鞘、茎和穗中运输积累，穗中Na的积累最显著。

The research on the Na+/H+ antiporter gene from Zostera marina L. can help to find the structural and functional difference of the different plant Na+/H+ antiporter gene and help to mastering the salt-tolerance mechanisms of the Na+/H+ antiporter gene.

研究大叶藻中Na~+/H~+逆向转运蛋白基因对于了解不同植物Na~+/H~+逆向转运蛋白基因在结构与功能上的差异，以及进一步深入了解该类基因的耐盐作用机理具有重要意义。

In addition, the Na+/H+ antiporter gene from Zostera marina L. could have the strong ability for the Na+ anti-transporting. It will hold an application meaning when the crop salt-tolerance is enhanced after they are transgened with the Na+/H+ antiporter gene from Zostera marina L.

此外大叶藻中分离Na~+/H~+逆向转运蛋白基因很可能具有更强大的Na~+/H~+离子逆向转运功能，将其用于遗传转化，对于提高作物耐盐性将会更加有效，具有一定的实践意义。

A/DK/Hubei/216/83(H7N8) shared 96%～98%homology with different subtypes avian influenza viruses which isolated from HongKong during 1972～1997, in addition, evolutionary analysis showed that the remainingfive gene except NA and PB2, had close phylogenetic relationship with 1972～1997strains. A/DK/Hubei/137/83(H10N4), sequence similarity analysis revealed that theNS, PA, PB1, PB2 gene shared 98%～99% homology with the 1997～2004 H5N1subtype avian influenza virus strains, and except NA and M gene, the other five geneformed independence branch with their own, and the distance between the otherisolates were far.

前者HA氨基酸剪切位点序列为P-E-V-V-Q-G-R，后者HA剪切位点序列为P-E-I-P-K-R；2株病毒的NA在第48位氨基酸后无20个氨基酸的缺失；NS蛋白的第79～84位也没有氨基酸的缺失，不具有高致病性特征；A／DK／Hubei／216／83(H7N8)与香港1972～1997年不同亚型AIV的同源性为96％～98％，进化分析表明，除NA和PB2独自成一支外，其余5个基因都与1972～1997年毒株亲缘关系较近。A／DK／Hubei／137／83(H10N4)除NA和M基因外，其他5个基因分别独立自成一支。

The influence on the content of Zn~(2+) is not too. The maize seedling have the mechanism of Na~+-exclusion and have definite salt tolerance, the salt tolerance was implemented by root and mature sheath, Na~+ is mainly reserved in root and mature sheath, and the content of Na~+ was less to be transported to mature blade and young blade.

玉米幼苗具有拒Na~+机制，具有一定的耐盐性，它的耐盐性是根和成熟叶叶鞘来实现的，Na~+主要贮存在根系和成熟叶叶鞘中，而向成熟叶叶片和生长叶中运输较少。

Therefore, the EL spectra of (Znq_2)_4 is wider than that of Znq_2. 4._2 was synthesized. The analysis of molecular spatial structure and the characterization of material performance of_2 and Liq showed that two Liq molecules and two Naq molecules were connected by Na-O-Na bond bridges to form_2. Compared with Liq,_2 exhibits stronger rigidity in planar molecular structure, larger steric hindrance and intermolecular distance, and much smaller molecular polarity, thus resulting in much longer fluorescence lifetime, much higher fluorescence quantum efficiency, wider energy bandgap and better film formability. When used as light-emitting layer in OLED,_2 shows lower formation probability of excited dimmer and exciplex formation than Liq, thus emits bluer light with higher current efficiency than Liq. When_2 ultrathin film is used as electron injection layer in OLED, it exhibits higher current density, higher luminance, lower turn-on voltage and higher current efficiency than Liq ultrathin film for the existence of sodium ions in_2 ultrathin film. 5. The summarization the relationship between molecular spatial structure and material performance of Alq_3,(Znq_2) and Liq, lead the conclusion that the molecular spatial structure of Mq_n affects its material performance in such aspects as the rigidity of planar molecular structure, intermolecular interaction, molecule stacking mode and intermolecular distance.

制备了_2，通过对_2和Liq的分子空间结构与性能进行分析与讨论，发现_2是通过两个Na-O-Na键桥将两个Liq和两个Naq连接构成的，其分子平面结构的刚性程度强于Liq，空间位阻大于Liq，分子之间的距离大于Liq，分子极性远远小于Liq；_2的荧光寿命长于Liq，荧光量子效率高于Liq，成膜性优于Liq；_2的禁带宽度比Liq大，光致发光光谱中_2的最大发射峰较Liq发生蓝移；当_2在OLED中作为发光层时，激发二聚体与激基复合物的生成几率远远小于Liq，发的光比Liq更蓝，电流效率大于Liq；_2超薄膜中有Na离子的存在，与Liq超薄膜相比，当其在OLED中作为电子注入层时，具有更大的电流密度，更高的发光强度，更低的阈值电压和更高的电流效率 5、对上述Alq_3、Znq_2和Liq的分子空间结构与材料性能之间的关系进行了归纳总结，认为Mq_n的分子空间结构主要在分子平面结构的刚性程度，相邻分子之间的相互作用，分子堆叠的方式和分子之间的距离这四个方面影响其性能。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失