单词：rotary-drill pipe
单词：rotary-drill pipe 相关文章
block and tackle 滑轮组 boring 钻孔 circulate 注入，环流 coring bit 取芯钻头 cutting bit 钻头 cylinder 圆柱体 derrick 井架 drill pipe 钻杆 every so often 时常 geologist 地质学家 gusher 喷油井 mineral 矿物的 rotate 使
新概念英语第四册单词MP3
OLD KING COLE Old King Cole Was a merry old soul, And a merry old soul was he; He called for his pipe, And he called for his bowl, And he called for his fiddlers three!
鹅妈妈童谣
白日梦 Pipe dream 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pip
英语口语
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
英语口语
我们给大家介绍过两个以whistle这个字为主的习惯用语，今天我们还要给大家讲一个和whistle这个字有关的俗语：To whistle a different tune。 Different tune就是：不
美国习惯用语
A key stage in the construction of Gongbei tunnel, which will connect south China's Zhuhai city with Macau, has been completed. Pipe roofing has now been installed to reinforce the tunnel, in one of the largest construction projects in China. The Gon
cctv9英语新闻2015年