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The concept of a Bollean algebra was first proposed by the English mathematician George Boole in 1847.Since that time,Boole's original concept has been extensively developed and refined by algebraists and logicians.

布尔代数的概念最初是有英国数学家George Boole于1847年提出来的，从那时起，代数学家和逻辑学家们更广泛的发展了Boole的这一其实概念，并使之更加精练。

3 1 X*{! g5 C+ X K The concept of a Bollean algebra was first proposed by the English mathematician George Boole in 1847.Since that time,Boole's original concept has been extensively developed and refined by algebraists and logicians.

L， a3 M+* O； _6 M 布尔代数的概念最初是有英国数学家George Boole于1847年提出来的，从那时起，代数学家和逻辑学家们更广泛的发展了Boole的这一其实概念，并使之更加精练。

Mr Derbyshire, whose bookhas just been published in Britain after appearing in America last year, givesan intriguing account of these developments, and of the mathematiciansinvolved, such as George Boole, who "married algebra to logic" by inventingalgebraic ways to express logical arguments: he led an almost saintly life, butdied after his wife treated him for a chill by dousing him in buckets of icywater.

德比夏尔的这本书去年在美国出版，紧接着现在又在英国上市。书中对代数学的发展和历史上的数学家做了生动有趣的描述。例如乔治·布尔，他把&代数嫁给了逻辑&，用代数的方式表达逻辑参数。乔治·布尔一生圣洁，但是却死于他妻子淋头而下的冰水所致的风寒。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。