极好的
- 与 极好的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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And the cross correlation function is approximately zero, which makes them suppress the disturbances due to the other users. After describing some basic knowledge of chaotic theory in chapter 2, we interview and classify the applications of chaos in communications including chaos secure communication, chaotic spreading codes for multi-user access in spreading spectrum system and chaotic modulation and demodulation in chapter 3. FM-DCSK system with non-coherent demodulation offers the best performance in chaotic modulation schemes.
在混沌调制方案中, FM-DCSK调制是一种极具竞争力的混沌调制方式,它克服了CSK、COOK、DCSK解调中存在的估计问题的缺点,在无线信道的传输过程中,可以很好的抑制噪声干扰与多径衰落,并且能获得非常优越的解调性能,加上混沌信号本身优越的保密性能,该调制方式在未来的无线通信领域存在着巨大的潜在优势。
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DayStar works on the principle that even minute modifications of the solar material could help create flexible, efficient, and lightweight solar cells for commercial and military customers. Applications range from portable power units to high-altitude airships (for cellular telephony and related communications). In particular, CIGS-based solar cells are extremely resistant to harsh conditions and are considered 'self repairing' accounting for their unusually long lifespan, making them well suited for near space and orbital applications.
日星严谨的工作致力于太阳能电池的完善,按照柔性高效轻便的原则,甚至是极细微的一些改造都不放过,以求最大限度的满足商业和军事的客户要求;其应用范围从便携动力单元到高空飞艇或移动电话和其他相关通讯设施,尤其特别的是,CIGS太阳能电池对各种苛刻环境的高适应性和自我修补性非常之好,这建筑于这类电池特别的长寿特性,使得他们能用于外太空的一些应用上
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In order to overcome the technological difficulties encountered in the course of insulation fault diagnosis on the base of dissolved gases analysis, several kinds of mathematic models and actualized methods are brought forward to improve the reliability and veracity of fault diagnosis of transformers. The research works are shown mainly as followings:1 A modified fuzzy multi-criteria method is brought forward for insulation fault diagnosis of transformer. Furthermore, a new method for insulation fault diagnosis is proposed on the base of fuzzy multi-criteria together with rule reasoning. With fuzzy diagnosis in the method, fault reasons are filtrated and then the reasons in low probability are prohibited, Moreover, the left reasons are testified by using rule reasoning and then final concludes are drawn in much less misjudge probability and better results.2 On the base of geometry characteristics of C- partition to sample set of DGA data of transformer, a method is put forward to compute effective radius of neighbor field of a sample, number of clusters and values of initial centers. Moreover, the fuzzy C- means cluster model with adaptive weight is brought forward in the first time and then the fault classifier is designed for insulation fault diagnosis of transformer.3 According to the weakness of the degree of gray of gray incidence, a new formula to compute DGI is put forward and then incidence order criterion is ascertained. Moreover, a new DGI model for fault diagnosis is proposed according to the further analysis to relationship between fault reason and content of oil dissolved gases of transformer.
为解决在应用油中溶解气体分析方法(Dissolved Gases Analysis,简称DGA)诊断变压器内部绝缘故障时所遇到的主要技术难题,论文提出了用于提高变压器故障诊断准确性和可靠性的数学模型及实现方法,主要研究工作如下:1)提出了一种改进的变压器绝缘故障诊断模糊综合评判方法;进一步提出了将模糊综合诊断与规则推理相结合进行绝缘故障诊断的方法,该方法采用模糊推理对故障原因进行"过滤",滤掉可能性极小的原因,然后进一步利用规则推理验证剩下的可能原因,得出最终结论,大大减少了误判比率,获得了较好的效果。2)根据以变压器DGA数据为特征量的样本空间的c-划分几何特性出发,提出了一种求取样本有效邻域半径和聚类数及聚类中心初值的方法,在此基础上,首次提出了一种自适应加权的变压器绝缘故障诊断的模糊c-均值聚类模型,并设计出故障分类器。3)针对常用灰色关联度的不足,提出了一新的灰色关联度计算公式及确定关联序的准则;并在此基础上,通过深入分析变压器发生绝缘故障时的原因与油中溶解特征气体含量的关系,建立了一种新的故障诊断灰色关联模型;通过实例分析证明,该方法能有效地诊断出变压器绝缘故障及故障部位,大大提高了诊断的准确性。
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Theoptimeter growthing environment of Anthurium andreanum seedlings wastested by the photosynthetic rate;The important factor of the soilless culture of Anthurium andreanum seedlings was decided by variance analysis of the total areas of leaves, height of seedling, the content of chlorophyll, photosynthetic rate;The best statistical level was defined by Duncans test;The optimum substrate and nutritional solution were determined by analysis of the major components; The requirements of macro- element at the different growth period have determined by the timing of flowering and measuring the content of N, P, K, Ca , Mg of leaves which can offer the theory of the soillessculture of Anthurium andreanum.
测定各处理组合的总叶面积、株高、叶绿素含量、光合速率等形态、生理指标,并对这些指标进行正交试验的方差分析来决定影响安祖花无土栽培的主要因素。通过对主要因素各水平进行新复极差检验得出最好的水平。综合考虑主要因素和水平找出最适合安祖花无土栽培的基质、营养液。观察各处理安祖花初花期的早晚,并通过测定不同时期叶片中的N、P、K、Ca、Mg的含量,确定安祖花不同生长时期对大量元素的需求情况,为今后更好的进行安祖花无土栽培提供理论依据。
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At a mean follow-up of 15 months (range, 10-19 months), 19 (65.51%) of 29 patients had excellent results, and nine patients (31.03%) had acceptable results. HolCTU failed to maintain good flow in the latter group, necessitating internal urethrotomy/endoscopic dilation once or twice for stabilization (maximal flow rate 15 mL/s or greater). One patient (3.44%) had recurrent obstruction despite repeated internal urethrotomy, which finally required formal transpubic urethroplasty. All of the patients were continent, with no change in potency status.
经过15个月的后续追踪(范围在1 0-19个月),29位患者中有19 位(65.51%)患者有极佳的效果,另有9位(31.03%)患者有可以接受的效果;不过,后面几组无法以尿道造口术维持好的流动,为了稳定流速,需要一至两次内部的尿道造口术/内视镜扩张术(最大流速为5 mL/s 或更大);有1位(3.44%)患者虽然重复接受内部尿道造口术,但是一再发生阻塞,患者最后需要经正规的耻骨尿道成形术,全部患者可在不影响性功能的情况下控制排尿。
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The "twig" is a stick insect, a magnificent specimen of the Phasmatodea clan, its outer sheath a persuasive rendering of striated bark, its tubular body and head punctuated by fake axillary buds and leaf scars—the little knobs and notches that make a twig look twiggy.
那&细枝&是一只竹节虫,它极好地代表了竹节虫目这一神奇的种群,它的外鞘像极了皱巴巴的树皮,以假乱真的花苞和叶痕点缀在它管状的身体和头部——这些细小的凸起和凹陷让这根&细枝&看起来更像是很多细枝拼接起来的。
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That will antagonise his fellow politicians, who do so well out of the present wretched system,but it will send a firm signal that Nigeria is on the right track and it will delight the country's long-suffering voters.
首先,他应该组建尼日利亚真正的独立选举委员会,那将使那些在极坏的现行体制之外做的很好的政治伙伴和他成为敌人,但是它将会传递一个明确的信号,那就是尼日利亚正确的道路上,而且它将使饱受摧残的选民们感到高兴。
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That will antagonise his fellow politicians, who do so well out of the present wretched system,but it will send a firm signal that Nigeria is on the right track and it will delight the country's long-suffering voters.
首先,他应该组建尼日利亚真正的独立选举委员会,也许那将使那些在极坏的现行体制之外做的很好的政治伙伴和他成为敌人,但是它将会传递一个明确的信号,那就是尼日利亚正确的道路上,而且它将使饱受摧残的选民们感到高兴。
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The unique difference with the common bicycle is that it hasn't footplates to make sure that is safe. With its pack conveniently, the children can do the pack with the parent's help, which can bring up children's capability of manipulation, improve children's thought and develop their intelligence.
区别于普通的自行车的最独特的地方,就是这款木制自行车没有脚踏板,安全性能极好,拆装方便,可以让孩子在家长的指导下自己动手拆装,从小培养孩子的动手操作能力,并增强孩子的脑力思维,开发智力。
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The most interesting is the Lo dug on the beach: a snail, the appearance of abnormal smooth, very beautiful patterns, hidden in the sand, but as long as pay attention to crawl after it left a deep trough of curved lines, you can easily find It brought home a little processing, that is, a fine jewelry; another Lo is also long in the sand, white shell, the white meat, good taste, it will be on the beach in the arch of a small sandbags, as Chun-Sun unearthed, one out of a prospective, very interesting.
最有趣的是在沙滩上挖螺:一种螺,外表异常光滑,有非常美丽的花纹,藏在沙中,但只要留意它爬行后留下的很深的弧形槽线,就能轻易找到它,带回家略为加工,即是精美的饰品了;另一种螺,也是长在沙中,白色的壳、白色的肉,味道极好,它在沙滩上会拱出一个小沙包,像春笋出土那样,一掏一个准,非常有意思。
- 推荐网络例句
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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.
随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。
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But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.
不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。
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Closes the eye, the deep breathing, all no longer are the dreams as if......
关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。