查询词典 PN

The main results are: given n - 1 polynomials satisfying some conditions,then each polynomial can represent an excess demand function for corresponding commodity.

p1，p2，…，pn－1），s＝1，2，…，n—1，若满足条件：则Es，s＝1，2，…，n—1均为一个经济的超额需求函数。

Mechanical seal supplied with high pressure sealing water is recommended when the slurry pump is installed in series (two stages and above tow stages).and the expeller seal combined with packing seal is used when the pum is installed in single-stage.

对于多级串联采用填料加副叶轮组合式密封，二级和二级以上轴封水最低压力一般为：Pn=其中n≥2；Hi为等i级泵扬程；Hn为第n级泵扬程。对采用机械密封，各级泵的轴封水压力一般要求比泵出水口压力大0.1MPa。

The dual-optical tweezers system has been improved:(1) The resolution of force measurement reaches sub-piconewton level and the maximum force is extended to 40 pN;(2)The time response is speeded up to sub-millisecond scale;(3) The observation and detection means for fluorescence-labeled macro-molecule is set up.

改进了双光镊系统：（1）将测力分辨提高到亚皮牛顿量级，测力范围扩展到40 皮牛顿；（2）将测量的时间响应提高到亚毫秒量级；（3）具备了观测大分子水平生物对象的荧光观测手段和相应技术。

That there was some awareness of a change in musical techniques and outlook in the years around 1320 is suggested also by the earliest music to exemplify the notation described in Philippe de Vitry's treatise, the motets for the roman de Fauvel copied into manuscript F-Pn fr ,146 in 1316, some of them extensive works several times longer than the motets of the previous generation and displaying a range of notational values far greater than it was possible to notate with the previous Franconian and post-Franconian techniques.

人们已经意识到这些音乐技术的改变，并且在1320年前后出现的这个观点也通过早期音乐证明了维特利的论文中描述的记谱方法。1316年抄录进《福威尔传奇》的经文歌的乐谱，其中有些篇幅很大，数倍于先前的经文歌，并且显示出的音符种类的增多远多于先前记载的弗朗科式经文歌和后弗朗科式经文歌记谱方法。

Acupuncture can abate the hydrops of the injuried facial nerve of rabbit, protect PN and prevent retrograde degeneration.

针刺能明显改善周围性面瘫兔面神经损伤后的运动神经传导速度。4。

The light curve of five kinds of landscape lianas commonly used in southern China were measured by LI-6400 portable photosynthesis system and fitted by non-rectangular hyperbolic model. Light compensation point, light saturation point, Pn,ɑ of the 5 lianas species were analyzed comparatively. The results indicated that there are significant differences in light response of photosynthesis among them.

采用Li-6400便携式光合测定仪对5种华南地区常用园林绿化藤本植物进行了光响应曲线的测定，并用非直角双曲线模型对其进行拟合，对比分析了5种藤本植物的光补偿点、光饱和点、最大净光合速率、最大表观量子效率。

We also calculated the hypocenter depth of the earthquake in different crust models using sPn phases.

初步了解sPn震相的一些特征，并在不同地壳模型下用sPn-Pn的走时差计算了该地震的震源深度。

The WEA method is a method of synthesizing controller for DES by using weighted enabling arc is applicable to enforce'greater-than-or-equal-to'marking inequality constraint.

接着，利用扩展Petri网，提出了DES的PN控制器设计的两种对偶的方法：加权抑制弧方法和加权使能弧方法。

The core of the integrated injection logic family which includes I2L, I3L, S2L, SFL, SI2L and 3JL etc., is composed of three mutually interactive PN junctions.

E-M和G-P模型对于描述结型晶体管是很完善的，但是不能充分描述三个结之间的相互作用。

Items of Eysenck Personality Questionnaire were translated into Chinese and analysed through biserial correlation with the 4 scales. A slightly modified EPQ in Chinese was given to 370 schoolchildren aged 7—15. Their scores in personality characteristics showed that (1) boys score higher extraversion and psychoticism than girls and girls have higher neuroticism and lie scores than boys,(2) the intercorrelation of PL is negative and very high, that of PE PN EN are all below 0.30 exclusively,...

本研究使用艾森克人格问卷，测试在校儿童370人，发现：男孩的外倾性和倔强性高于女孩，而女孩的情绪性和掩饰高于男孩；儿童的情绪性、外倾性和倔强性都有随年龄而增加的趋势，自身隐蔽和掩饰则随年龄减少；从量表统一关系分析：精神质低的儿童较多，精神质和神经质都低的也多；与前人文献相比，现在男孩的冒险性和女孩的社会活跃性较为明显。

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。