查询词典 PN

T was prepared by two types of PDMS whose viscosities are 3 300 Pa·s and 7 000 Pa·s respectively and MA monomer, where the PDMS were crosslinked by tetraethyl orthosilicate.

PN是 2种或 2种以上的聚合物通过物理或化学交联生成的网络，网络间相互贯穿，形成微相分离的多相体系。

Pyridoxine, pyridoxal , pyridoxamine as well as their phosphated forms are structural analogues in which pyridoxal-5"-phosphate and pyridoxamine-5"- phosphate are the biological active forms in vivo which act as the cofactors of aminotransferases, amino acid decarboxylases, cysteine desufbrase and cystathionine , etc by constant transconversions. Recently, it was discovered that B6 played a novel role in tumor growth suppression.

它包括三种结构十分近似的化合物：吡哆醇(Pyidoxine，PN)、吡哆醛(Pyridoxal，PL)和吡哆胺(Pyridoxamine，PM)，分别以磷酸化的形式发挥作用，其中吡哆醛-5'-磷酸(Pyridoxal-5'-phosphate，PLP)为B_6在体内的活性形式，通过与磷酸吡哆胺(Pyidoxamine-5-phosphate，PMP)的互变，作为多种酶(氨基转移酶、氨基酸脱羧酶、半胱氨酸脱硫酶、胱硫醚酶等)的辅酶而发挥传递基团的作用。

The results showed that:1. Changes of Photosynthesis and Relative Physiological Characteristics of Photinia frasery Dress Seedlings under Different Drought in SpringAlong with the stress time extended and stress extent increased, leaf water content, photosynthetic pigment content and photosynthetic indexes of Photinia frasery Dress were inhibited in different levels, but the anthocyanin content, MDA content and membrane permeability increased distinctly.

结果表明： 1。不同程度干旱胁迫下红叶石楠叶片光合作用及相关生理特性的变化随着胁迫时间的延长和胁迫程度的加剧，红叶石楠的叶片含水量、光合色素含量以及Pn等光合基本指标都受到了更深程度的抑制，且可利用的光强范围越来越小，而花色素苷含量、MDA含量和细胞膜透性大幅增加，保护酶系统(SOD、POD、CAT)活性随着胁迫时间的延长，总体表现为先升高后降低，但在同一时期，随着胁迫程度的加剧，酶活的变化趋势有异。

The results showed that there were markedly photoinhibition phenomena under high light stress at midday.

对生姜遮荫可提高AQY和Fv/Fm ，降低光抑制，但由于遮荫降低了羧化效率，使Pn明显下降。

There is slightly variation in Pn among the Pistacia vear varieties, but the curve of diurnal variation of Pistachio leaf photosynthesis all showed two peaks.

阿月浑子光合作用最适温度为30℃，光饱和点为1600μmol.m〓。s〓，光合作用最适土壤相对含水量为70％，灌溉的临界土壤相对含水量为30％～35％。

There is slightly variation in Pn among the Pistacia vear varieties, but the curve of diurnal variation of Pistachio leaf photosynthesis all showed two peaks. This fact indicated that there exists photoinhibition of photosynthesis in pistachio leaves under strong sunlight at noon.

阿月浑子光合特性因种源和品种不同而略有不同，但光合速率的日变化均呈双峰曲线变化模式，中午强光下发生了&光抑制&。

The diurnal and seasonal changes of photosynthetic rate of Pyrus bretschneideri (CV.jinfeng and pingguoli) that are cultivated in sandy land were studied.

通过对沙地栽培的苹果梨和锦丰梨2种梨树光合速率日变化、季节变化的测试研究表明：苹果梨Pn日变化呈单峰曲线，峰值出现在上午9：00为10.158 μmol.

Methods: Peripheral nerve injury model was set up by crushing the right sciatic nerve of rats.

用钳夹大鼠坐骨神经建立大鼠PN损伤的动物模型。

Diurnal changes of photosynthetic rate and transpiration rate of Leymus chinensis were investigated by Li-6400 in saline sodic grassland,and relationship among the factors affected Pn and Tr was analysised.

采用Li-6400型光合作用测定系统对苏打盐碱化草地羊草光合速率和蒸腾速率的日变化进行测定，并对影响羊草光合和蒸腾速率的诸因子间相互关系进行了分析。

The Satinsky clamp is unclamped and maintained in place to assess the adequacy of haemostasis from the PN bed.

松开Satinsky 钳评估部分肾床止血是否完善。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。