查询词典 PN

Therefore, a polynomial time algorithm for reducing the extended three partition problem to the reachability problem of the URV-PN is developed.

文中提出了扩展的三划分问题，指出扩展的三划分问题可多项式归约为唯一可达向量网系统可达性问题，因此给出了求解唯一可达向量

Lower Pn in potted peony might be one of the main reasons leading to bad growth.

盆栽牡丹较低的光合速率可能是其生长不良的主要原因之一。

Spraying PMS (phenazine methosulfate, a cofactor catalyzing cyclic PSP) and NaHSO〓 separately or together on the leaves, Pn was increased by about 20% in all the treatments.

将己知可促进循环光合磷酸化的辅助因子PMS和NaHSO〓分别和共同喷洒叶片，次日所有叶片的光合速率均比对照提高20％左右。

The P n P problem is a classical problem in computer vision, photogrammetry, and even in mathematics.

Pn P问题是计算机视觉、摄影测量学乃至数学领域的一个经典问题。

Based on this background , making the PN code capture part as a point of the spread spectrum receiver , this paper analyse several common used Matched Filter programs on FPGA , including : the direct form of matched filter , the transposed structure of matched filter , the distributed arithmetic structure of matched filter , and folded structure of matched filter .

基于以上背景，本文针对扩频接收机中伪码捕获部分为研究重点，分析了几种基于FPGA的常用匹配滤波器实现方案，其中包括：直接形式的匹配滤波器、转置结构的匹配滤波器、采用分布式算法的匹配滤波器和折叠式匹配滤波器。

Diurnal changes of Pn and environmental factors (photosynthetic available radiation and air temperature and relative humidity) and physiology factors (stomatal conductance and transpiration rate and intercellular CO2) in leaves of puna chicory were measured using CI-340 portable photosynthesis system.

利用CI-340便携式光合仪，测定了普那菊苣叶片净光合速率和环境因子（气温、光合有效辐射、空气相对湿度）、生理因子（蒸腾速率、胞间CO2浓度、气孔导度）的日变化；通过回归和通径分析，考察了影响因子对净光合速率日变化的影响。

To study the changes of testis nitric oxide synthase and apoptosis in high dose pyridoxine for the understanding of the molecular mechanism of high dose PN injurious action on the development and function oftestis.

为探讨大剂量吡哆醇对睾丸结构和功能损害的分子机制，研究其对睾丸一氧化氮合酶和细胞凋亡的影响。

GE was assessed by the method of radiopaque markers on the third day after the operation and PN.

应用不透X线标志物检测三组病例的胃排空时间。

Influence of environmental factors on photosynthetic physiologic indexes and water use efficiency of winter wheat leaves was studied in semi-arid rain feed agriculture region in Loess Plateau. Diurnal fluctuation of physiological rate of leaf was a not obvious two-hump curve and diurnal fluctuation of transpiration rate was a typical resupinate "U" and the Pn and Tr in a.m.

通过对黄土旱塬冬小麦叶片光合生理指标、水分利用效率及其对环境因子的响应进行分析，结果表明：净光合速率日变化呈不明显的双峰曲线，蒸腾速率日变化呈明显的倒"U"型曲线，两者上午都明显高于下午，且不同生育期峰值出现的时间不同。

The formation and propertiesof the polymer gel are constrained mainly by the polymer nature、crosslinker type and crosslinked pattern、water saltness、active impurities、pH、temperature and other factors.

其形成和性能主要受聚合物性质、交联剂类型和交联方式、水中盐度、活性杂质、pn值、温度等多方面因素的制约。

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。