最有效的使用

We use the single chip PIC18F452, as the center control circuit, and through the measurement of open circuit voltage and short circuit current to get the current system impedance, then force the apparent load impedance to match it to make the solar system working on maximum power point.

本论文使用阻抗匹配法的最大功率点追踪技术，将能有效预知下次的最大功率点位置，使系统维持工作在最大功率点上，达到最大功率输出的目的。

From the starting value selection method in the Fuzzy ISODATA algorithm, used the method of maximal matrix element to ascertain the number of classification, the theoretical analysis of repeated test, and finally, the improved fuzzy ISODATA algorithm is obtained. The algorithm reduced sensitivity to the starting value. The algorithm can highly effective clustering analyze and obtains a stable result, so it presents an efficient way of improving the contribution value of custom service.

研究中先对模糊ISODATA聚类演算法中，初始划分矩阵和分类数的确定，并使用最大矩阵元素法，求得最佳化演算法中其他参数值，最后在CRM系统实际验证和分析中，采用本研究改良之模糊ISODATA聚类演算法，对汽车销售公司实施客户模组分类，经实验证明所得到的聚类结果，可有效解决一般聚类方法受限於参数设定敏感度的困扰，并使聚类精确度提高，有效排除杂讯敏感的影响，使聚类效果大幅提升，可帮助行销人员做出预测，制订出针对客户差异化的行销策略，提高客户服务的贡献价值。

However, the most simple and easy way is to use the parallel port and USB interface converter; this way inexpensive, but many companies offer such products, but it is not for all the printers are effective.

最简但易行的方法是使用并行端口与USB接口的转换器；这种方法花费不多，而且许多公司都提供此类产品，不过它不是对所有的打印机都有效。

The most popular medicine in the world today, it is an effective pain reliever.

作为世界上最广泛使用的一种药品，阿司匹林能够有效地缓解疼痛。

The mean velocity distributions in turbulent boundary layers of smooth surface and two different riblet surfaces are measured with IFA300 constant-temperature anemometer in low-speed wind tunnel to validate the full development of turbulent boundary laye. Friction velocity and wall friction stress of turbulent boundary layer are obtained with the least-squares fitted curve of the sublayer velocity distribution based on Spalding formula, and virtual origin position of riblet surface can be acquired accurately.

在低速风洞中来流速度一定的情况下使用IFA300恒温热线风速仪测量了光滑表面和两种不同尺寸的脊状表面湍流边界层平均速度分布剖面，并验证了试验段湍流发展的充分性；通过应用Spalding壁面公式使用最小二乘法精准拟合了实验测量的边界层内层速度分布曲线，得到了湍流边界层壁面摩擦速度并进一步求得湍流壁面摩擦应力，较准确地计算出脊状表面的虚拟原点位置，并通过与对数律公式拟合结果比较分析，证实了该方法更加准确有效。

The researcher finds that the use of ethno plants of the ancestors is amazingly wise, and it also respects the harmony of nature. The masculine plants with large number and fast growing are mostly used, such as Miscanthus and .Macaranga. used as firewood. As to the plants growing more slowly, ancestors cherished them and used them effectively and appropriately according to their characteristics.

民俗植物调查的结果发现先民对植物的利用是很有智慧的，也十分能尊重自然的协调，对於族群大、生长快的阳性植物常使用得最多，例如五节芒、野桐、白匏子等大量使用於薪材；对於生长慢数量少的植物，则珍惜资源有效使用，充分了解依据植物生长的特性，做适时适当的运用。

Results indicated that introducing some ring-structure into UF molecule during the synthesis could efficiently improve the water resistance of UF resin. The Uron ring would form if reaction temperature was more than 75 degrees C, and the higher Uron content was obtained at pH 8 and 85 degrees C in the absence of catalyst when the reaction time was long enough.

结果表明：通过在脲醛树脂合成中引入Uron环等环状结构物质能够有效提高脲醛树脂胶黏剂的耐水性；当反应温度高于75℃时，反应产物都生成了一定量的Uron环物质；在pH值为8左右、温度控制在85℃、不使用催化剂、尽可能延长反应时间的条件下，尿素与甲醛成环化反应生成的Uron相对值最多。

Where a conductor supplies a receptacle or cord connector that is marked as specified in 59.2 or 59.3 with an intended maximum available current, the load current value is to be the maximum current appearing in any of the markings provided.

应用在插座或接线端子上的导线要标识使用最大负载电流值，在59.2或59.3有规定最大有效电流。

The structure and machining principle of the cutting tool were presented,the material of cutting tool was optimized,the insert structure of the cutting tool was designed.Based on the local experiments in factory,the rule that the cutting parameters using this type of comp...

通过生产试验研究了使用该刀具时切削参数对加工质量的影响规律，得出了最优加工工艺参数，试验证明该刀具在保证加工质量的基础上能够有效提高加工效率。

Some commonly agreed findings of legibility research include: text set in lower case is more legible than text set all in upper case, presumably because lower case letter structures and word shapes are more distinctive, having greater saliency with the presence of extenders (ascenders, descenders and other projecting parts); regular upright type is found to be more legible that italics, contrast, without dazzling brightness, has also been found to be important, with black on yellow/cream being most effective; positive images are easier to read than negative or reversed; the upper portions of letters play a stonger part than the lower portions in the recognition process; legibility is compromised by letterspacing, word spacing and leading that are too tight or too loose.

在易读性研究方面达成的共识包括：小写字母的文本要比全大写字母的文本易读，大致是由于小写字母的结构和词语形状更容易区分，特征更明显——带有延展性的笔画（ascenders上伸笔画， descenders下伸笔画、以及其他的伸展性笔画部件）；标准体字形的易读性要优于斜体；对比很重要——不要有那些耀眼的发光效果；在黄色/奶油色底上使用黑色文字最有效；阳文要比阴文易读；在识别过程中，字母的上部形状要比下部形状发挥更重要的作用；字母间距、词间距和行间距太密集或太松散也会降低易读性。

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。