查询词典 condition number

Another feature of HEDDTB is that its tubes' buddle is composed of tubes with different diameters, which lead to a smaller fluctuation of heat transfer coefficient in the condition of fluctuating flux than that of the heat exchanger with tubes that has the same diameter in the case of low Reynolds number.

异径管束换热器的换热管束由直径不同的管子组成，这种换热管束在低雷诺数下传热系数随流量的波动相对同径管束而言较小，因此异径管束有一定的抗传热系数波动的性能，这使得换热器在流量波动的工况下工作性能稳定。

Considering the unique sports style and complex venues condition of golf, there is great value in the research of caddie robot of golf. At present, a number

由于高尔夫独特的运动方式和复杂的场地条件，因而对高尔夫球场的球童机器人研究具有一定的价值。

Among the large number of nonlinear absorbers, the material applied most extensively is phthalocyanine reverse saturable absorption compound which is organic large molecule with central symmetry two-dimensional π-electron conjugate system. In the off-resonance condition, its absorption coefficient will raise along with the increasing of incoming light intensity, which shows its reverse saturable absorption properties.

在非线性光学材料中目前最具应用价值的是酞菁类的反饱和吸收材料，这是一类具有中心对称二维π电子共轭体系的有机大分子，在非共振激发条件下，吸收系数往往会随入射光强的增加而增加，体现反饱和吸收。

According to its indicated pressure diagrams measured under the condition of burning diesel fuels with different cetane number in D.

通过实测直喷式柴油机燃烧不同十六烷值柴油时的缸内压力示功图，以此计算出相应的燃烧放热规律。

When the larvae were fed with Apricot and apple-pear the death rate of the larvae increased,the larval and pupa stages prolonged, the pupa weight decreased, female adult life shortened and the average fecundity.The age-specific life table of codling moth indicated that the trend index of codling moth population fed on Jonathan apple, Red Delicious apple, Zhangye number two apple, Chinese pear-leaved crab-apple and Crisp pear were more than one. Experiment population quantity was at the growth condition. The trend index of codling moth population fed on Apple-pear and Apricot were less than one.

通过不同寄主植物饲养条件下苹果蠹蛾特定年龄生命表的分析可知，取食沙果、早酥梨、红玉苹果、红元帅苹果和张掖2号苹果的苹果蠹蛾实验种群的种群趋势指数均大于1，实验种群数量处于增长状态，而当苹果蠹蛾取食苹果梨和杏时，其种群趋势指数小于1，下代种群(来源：Ab9b9BC论文网www.abclunwen.com)数量不断减少。

Using an aggregation matrix with full column rank to map the on-line optimization variable sequence into a new one, the number of on-line optimization variables is cut down without reducing the control horizon. A sufficient condition is presented to check whether the control variable sequence can be aggregated.

通过一个列满秩的集结矩阵将维数较小的控制变量序列映射成在线优化变量序列，在不缩短控制时域的情况下，降低了在线优化变量的个数。

In the condition of long pseudo code and large carrier Doppler frequency shift, the number of FFT points in the conventional synchronous acquisition algorithm is too large, the complex multiplication is of high computational complexity and large time cost, and the parameter evaluation acquired in a long duration is not applicable for carrier tracking because it is too old.

当伪码较长、载波多普勒频移较大时，传统的同步捕获算法进行的FIT点数较多，复数来加运算量大，耗时长，而在校长的捕获时间内，捕获得到的参数估计过于陈旧，无法应用于载波跟踪，为此，文中提出了一种改进的快速同步方法。

And again, this condition gave rise to a number of compositional problems in piano writing.

诸如此类的情况，给钢琴曲创作带来了很多的问题。

It shows to design the condensator of the absorbing solar air condition,and analyse the influence of the heat transfer coefficient by the space between the wing,thickness of the wing,diameter of the tube and the grouping number,in order to achieve the optimizational design,It make the design process celerity and briefness,and make it that the influence other parameter brings more evidence.

对吸收式太阳能空调中的冷凝器进行了设计计算，并对其结构如翅片间距、翅片厚度、管直径、分组数等因素对传热系数、管内压降的影响进行了分析，以达到最优化的设计，本文运用Excel强大的图表和函数计算功能，使计算过程快速、简捷，并可以看到每个参数的变化对其他参数的影响，提出了使用于Excel计算冷凝器设计计算方法，避免了复杂的编程过程，为新型环保制冷机的设计优化提供一定的参考。

It is this condition limited the number of developers to enter.

正是这条件限制了一些开发商的进入。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。