[计] 谱半径

spectral radius的用法和样例：

例句

Using matrix theory, we present a sharp upper bound on the spectral radius of digraphs and strongly connected diagraphs.摘要利用矩阵理论，给出了简单有向图的谱半径可达上界和强连通有向图的谱半径上界。

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New England weather There is a sumptuous variety about the New England weather that compels the strangers admirationand regret. The weather is always doing something there; always attending strictly to business; always getting up new designs and try

发表于:2018-12-31 / 阅读(161) / 评论(0)

英语名著名段背诵精华

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KUALA LUMPUR, March 24 (Xinhua) -- New analysis of satellite data suggested that missing Malaysia Airlines Flight MH370 had crashed in the southern Indian Ocean, Malaysian Prime Minister Najib Razak said on Monday. Najib released the sad news at a ha

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英语新闻

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Moon 月球 Do you have any idea how big the moon is? 你知道月球有多大吗？ The moon's radius is 1737 kilometers. 月球的半径长1737千米。 This is just one fourth of our Earth. 它的半径仅仅是地球半径的四分之一。 The d

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与美国小学生一起学英文第4册

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I had occasion, a few weeks since, to take the early train from Providence to Boston; and for this purpose rose at two o'clock in the morning. 几个星期前，我有幸乘坐早班火车从普罗维登斯来到波士顿，为此我特地凌晨两点就

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VOA慢速英语2013 AS IT IS 2013-05-10 NASA Looks at Earth

AS IT IS 2013-05-10 NASA Looks at Earth Hello. I'm Jim Tedder in Washington. On our program today, fuel prices are about to take a big increase in Indonesia. We'll hear about a mixture of politics and economics. Then diplomacy of a musical kind in Mo

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托福英语

科学美国人60秒 SSS 2014-2-18

If the sight of Swiss cheese makes you melt or the thought of a honeycomb gets you buzzing, you may suffer from trypophobia, the most common phobia that you've probably never heard of. Trypophobia is the fear of holes. People with the phobia experien

发表于:2019-01-20 / 阅读(66) / 评论(0)

2014年Scientific American(二)月

经济学人159:新晋日本小说

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经济学人文艺系列

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The Herdwick Shepherd, James Rebanks, is the latest of several generations to have tended flocks in the Lake District, but he now has a book and 45,000 Twitter followers entranced by the starkly beautiful scenes he photographs every day. Here he expl

发表于:2019-02-04 / 阅读(88) / 评论(0)

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China to expand food contaminant monitoring

BEIJING, Jan. 25 (Xinhua) -- China has set a goal of equipping at least half of the country's county-level administrative regions to monitor various contaminants and harmful ingredients in food by the end of 2013. A new work plan, released on Friday

发表于:2019-02-06 / 阅读(94) / 评论(0)

英语新闻

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The wonderful snow is falling over river and woodland and wold; 纷纷扬扬，鹅毛大雪难以想象，染白河流，覆盖成片森林原野， The trees bear spectral blossom 枝杈魅影，开出精灵诡异骨朵， In the moonshine blurr'd a

发表于:2019-02-13 / 阅读(65) / 评论(0)

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Like spectral hounds across the sky, 白云苍狗，幽灵潜行掠过空中， The white clouds scud before the storm; 金蛇乱舞，暴雨黯淡天陲之路， And naked in the howling night 时光裸露，倏然跌进嚎叫的夜晚， The red-ey

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美国语文第五册

乔布斯传第421期:消灭兼容机(3)

Apple resisted licensing out the Macintosh operating system until 1994, 苹果一直拒绝把麦金塔的操作系统授权出去，直到1994年， when CEO Michael Spindler allowed two small companies, Power Computing and Radius, to make Macintosh

发表于:2019-02-15 / 阅读(88) / 评论(0)

乔布斯传

A wet sunday in a countr inn

A wet Sunday in a country inn! Whoever has had the luck to experience one can alone judge of my situation. The rain pattered against the casements; the bells tolled for church with a melancholy sound. I went to the windows in quest of something to am

发表于:2019-02-18 / 阅读(95) / 评论(0)

阅读空间

北京城市副中心等场所将于2020年率先使用5G网络

Beijing expects to implement the pre-commercial service of the 5th generation mobile networks, or 5G, in key locations by 2020, according to a development plan on big data and cloud computing released by the municipal government. 北京市政府近日发

发表于:2019-02-18 / 阅读(102) / 评论(0)

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发表于:2019-02-18 / 阅读(147) / 评论(0)

英文语法词汇

Afghanistan Maps Natural Mineral Resources

Afghanistan has become the first country to map its natural mineral resources using an advanced remote sensing technique known as hyperspectral imaging. The mapping, a collaborative effort between the U.S. Geological Survey and the Afghan Geological

发表于:2019-02-18 / 阅读(164) / 评论(0)

英语新闻

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Yet dost thou darker half, rock me with a prouder, if a darker faith. 然而，你那更加难解的半个身子，却以一种即使不是更加难解的、也是更加自豪的信念来颠簸我。 All thy unnamable imminglings float beneath me her

发表于:2019-02-25 / 阅读(123) / 评论(0)

白鲸记

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托福英语

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很多考生托福听力薄弱，主要原因在于托福词汇量不够。听力薄弱的考生是很难在托福考试中得到高分的。可能很多考生对托福考试的整体印象是考试内容比较专业，有大量的专有名词，一拿

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agar weed

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angle measuring equipment

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araxess

artificial decorative board

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Binhon Taung