管径

pipe diameter的用法和样例：

例句

The conditionality between the flow rate and the pipe diameter is discussed when the friction factor is fixed.文中还分析了在摩擦阻力系数一定的情况下，流量与管径的制约关系。
Diameter of the suction and evaporating pipes should be decided by oil circulation and reconfirmation of gas speed.吸气管及蒸发器管径，应考虑回油并再次确认流速后确定。

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So we know that the distance must be about eight thousand miles, as twenty-five is a little more than three times eight. 那么我们就知道从世界一面到另一面的距离肯定是大约8000英里，因为25是8的三倍多一点。 That is no

发表于:2018-12-04 / 阅读(119) / 评论(0)

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发表于:2018-12-19 / 阅读(51) / 评论(0)

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围绕树木展开的话题.... Dan: Hello and welcome to this weeks 6 Minute English. Im Dan Walker Smith and today, for the second part of our tree climbing programme, Im joined by Kate. OK Kate, well last week we were talking about tree climbing,

发表于:2018-12-27 / 阅读(56) / 评论(0)

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Hi, I'm Carl Azuz. Welcome to this Columbus Day edition of CNN Student News! We'll be talking more about Columbus Day in just a couple minutes. But first, we're reporting on a breakthrough in Chile. And we mean that literally. A hole big enough to re

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发表于:2019-01-10 / 阅读(60) / 评论(0)

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发表于:2019-01-10 / 阅读(87) / 评论(0)

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发表于:2019-01-14 / 阅读(92) / 评论(0)

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发表于:2019-01-20 / 阅读(131) / 评论(0)

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Pipe dream: 白日梦知不知道烟斗怎么说？很简单，仅用一个pipe就可形容这种一头带有小吹嘴的管状抽烟用具。当然，谈起pipe（烟斗），免不了会想到19世纪提着烟袋吸食鸦片的烟鬼们。短语pi

发表于:2019-02-03 / 阅读(100) / 评论(0)

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发表于:2019-02-05 / 阅读(106) / 评论(0)

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发表于:2019-02-17 / 阅读(52) / 评论(0)

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Apart from much else, our lively interior created the outgassing that helped to build an atmosphere 不说别的，我们活跃的内部使大量气体喷涌而出，帮助建立了大气层， and provided us with the magnetic field that shields us

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学英语单词

abandoning to

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adopted child

ala of sacrum

altogethers

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amplitude modulation double sideband

angle for fame and compliment

angular accuracy

asset information aggregation

automorphism of a module