Diamond Di"a*mond (?; 277), n. [OE. diamaund, the hardest iron, steel, diamond, Gr. . Perh. the corruption is due to the influence of Gr. transparent. See Adamant, Tame.] 1. A precious stone or gem excelling in brilliancy and beautiful play of prisma…

首先谈谈钻石和金刚石的名称.金刚石是一种天然矿物,是钻石的原石.习惯上人们常将加工过的金刚石称为钻石,而未加工过的称为金刚石(当然,有的金刚石不用加工便可应用).钻石是那些达到宝石级别的金刚石晶体切磨后的成品.所谓的宝石级别的金刚石,要达到一定的粒度.透明度和纯净度. 那么,什么是金刚石呢?简单的讲,金刚石是在地球深部高温.高压条件下形成的一种由碳元素组成的单质晶体,是一种密度相当高的碳结晶体,化学式为C,与石墨同属于碳的单质. 钻石一词的由来,与初期人们所知道它的一般物理特性有关.其英文名字D…

Diamond Di"a*mond (?; 277), n. [OE. diamaund, the hardest iron, steel, diamond, Gr. . Perh. the corruption is due to the influence of Gr. transparent. See Adamant, Tame.] 1. A precious stone or gem excelling in brilliancy and beautiful play of prisma…

首先谈谈钻石和金刚石的名称.金刚石是一种天然矿物,是钻石的原石.习惯上人们常将加工过的金刚石称为钻石,而未加工过的称为金刚石(当然,有的金刚石不用加工便可应用).钻石是那些达到宝石级别的金刚石晶体切磨后的成品.所谓的宝石级别的金刚石,要达到一定的粒度.透明度和纯净度. 那么,什么是金刚石呢?简单的讲,金刚石是在地球深部高温.高压条件下形成的一种由碳元素组成的单质晶体,是一种密度相当高的碳结晶体,化学式为C,与石墨同属于碳的单质. 钻石一词的由来,与初期人们所知道它的一般物理特性有关.其英文名字D…

Whenever I fail as a father or husband... a toy and a diamond always works. I never worry about diets. The only carrots that interest me are the number you get in a diamond. 在全部宝石中,最贵重.最吸引人的要数钻石了.钻石贵重,所以选购钻石时,有必要懂得辨别钻石的常识. 钻石(DIAMOND)一词,开始来源于希腊文演化的古法…

(1) be waken  by    被什么吵醒 (2) wake up !           快醒醒 (3)  put the flames    /fleimz/                     灭火 (4) is there a floor ? 发大水了吗? (5) be plotted to do sth   密谋做某事 for example : They plotted to rob the bank,but failed (6) power bank  充电宝 (7)…

Text I had an amusing experience last year. After I had left a small village in the south of France. I drove on to the next town. On the way, a young man waved to me. I stopped and he asked me for a lift. As soon as he got into the car, I said good m…

nltk安装完毕后,编写如下示例程序并运行,报Resource u'tokenizers/punkt/english.pickle' not found错误 import nltk sentence = """At eight o'clock on Thursday morning Arthur didn't feel very good.""" tokens = nltk.word_tokenize(sentence) print(tokens…

Given a non-empty string containing an out-of-order English representation of digits 0-9, output the digits in ascending order. Note: Input contains only lowercase English letters. Input is guaranteed to be valid and can be transformed to its origina…

Convert a non-negative integer to its english words representation. Given input is guaranteed to be less than 231 - 1. For example, 123 -> "One Hundred Twenty Three" 12345 -> "Twelve Thousand Three Hundred Forty Five" 1234567 -&g…