[机] 安全阀；放汽阀

2009-02-07&2009-02-09 脉搏快有问题？

So how is it, doc? It goes alright? Good. OK. I have my pulse checked coz Jim from Texas says his pulse is fast, really fast and he'd like to know if he should worry about it. Is a fast pulse an indication of anything specific? Well, you'd know the n

发表于:2018-12-11 / 阅读(92) / 评论(0)

访谈录2009

洪恩环境英语第九册复习 lesson three

REVIEW THREE For this lesson,you'll need a pencil and a piece of paper. Listen to this lecture about the history of the computer. Don't write anything yet.Just listen The inventor of the modern computer was an English mathematician,Charles Babbage. H

发表于:2018-12-25 / 阅读(30) / 评论(0)

洪恩环境英语

听歌学英语：TV In The Morning-DNCE

And all of the heavy hearts 所有沉重的心 Are broke in their backs 都悄悄地不为人知地伤痕累累 And all of the die-hard valentines 所有顽固的情人 Are calling me back 都在挽回我 You can find me in the restaurant 你会发现我

发表于:2019-01-03 / 阅读(44) / 评论(0)

听歌学英语

NPR 2010-07-13

BP is close to putting a new cap on the damaged well that's been spewing millions of gallons of oil into the Gulf since April's rig explosion. NPR's Richard Harris tells us the new cap has valves that might be able to stop the flow. The new cap could

发表于:2019-01-08 / 阅读(53) / 评论(0)

2010年NPR美国国家公共电台7月

吹小号的天鹅第58期:夏天的尾声

Chapter 13 End of Summer 第十三章夏天的尾声 A trumpet has three little valves. They are for the fingers of the player. 一把小号有三个小活瓣。它们是让吹奏者用手指来按的。它们看起来就像这样： By pushing them

发表于:2019-01-29 / 阅读(43) / 评论(0)

吹小号的天鹅

工程师助手小词典

1、阀门种类术语 Air valves 空气阀门 Angle Stop valves 角式截止阀 Angle Throttle Valves 角式节流阀 Angle Type Globe Valves 门角式截止阀 Ash valves 排灰阀 Aspirating valves 吸（抽）气阀 Auxiliary valves 辅助（副）阀 Balance valves 平衡阀 Bellows valves

发表于:2019-02-01 / 阅读(47) / 评论(0)

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