单词：helium shielded welding
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841 、 埋头铆钉 countersinkheadrivet 842 、 埋头锥孔 countersink 843 、 埋头螺栓 countersinkheadbolt 844 、 埋头螺丝 countersinkheadscrew 845 、 埋头钻 countersinkdrill 846 、
英文名句短语
A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into space as light and h
英语小短文
This is Scientific American's 60-Second Science. Im Cynthia Graber. This will just take a minute. One of the problems with large-scale solar power plants is that they require a huge amount of space. To rise above that problem Israeli researchers rece
Scientific American(三)月
His dad liked to fly balloons. His dad bought big balloons and filled them with helium. Helium is a gas. It is a gas that makes balloons float into the sky. One day his dad brought home a new balloon. He took it out of the box. He took it outside. He
超级简单英语阅读
1471 、 实践计划 realization 1472 、 对比 contrast 1473 、 对流 convection 1474 、 对接 butt 1475 、 对接合；对接榫 buttjoint 1476 、 对接角榫 buttmitredjoint 1477 、 对接焊
英文名句短语
1. Five people are dead after an unsuccessful emergency landing in Sanford, Florida, setting two houses on fire. The husband of a top NASCAR official and a company pilot are among the dead. An adult and two children who were in their homes were also
美联社新闻一分钟2007
The source of Energy A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into
英语小短文
Participants at the United Nations Climate Change Conference in Cancun, Mexico are complaining about long delays amid heavy security. Some environmental activists say they are being kept well away from conference sites, and when a group tried to stag
VOA标准英语2010年(十二)月
It's hard to admit that I need help, but I do. For 45 days from the end of December to early February, I was in inpatient therapy receiving guidance for the issues I'm facing. I have a long way to go. But I've taken my first steps in the right direct
偶像励志英语演讲
第一句：What kind of tour do you have? 你们有什么样的旅行路线？ A: What kind of tour do you have? 你们有什么样的旅行路线？ B: We offer many kinds of tours. 我们提供多种路线。 第二句：What can I see on the tour
旅游英语口语情景对话
电梯故障 Elevator Accident 本杰明下班回家，遇到了小小的电梯故障，他会因这次故障发表怎样的感慨呢？让我们来洗耳恭听吧！ Listen Read Learn Benjamin: That was really a nightmare! Shirley: Honey, what's up? Benjamin: I was stuck between 15th and 16th flo
英语口语大赢家
His dad liked to fly balloons. His dad bought big balloons and filled them with helium. Helium is a gas. It is a gas that makes balloons float into the sky. One day his dad brought home a new balloon. He took it out of the box. He took it outside. He
英语第1级听力-English Level 1
Questions 12-20 The elements other than hydrogen and helium exist In such small quantities that it is accurate to say that the universe somewhat more than 25 percent helium by weight and somewhat less than 25 percent hydrogen. Astronomers have measur
托福英语
bulk head 散货船 cross deck 过桥甲板 tugboat 拖船 freeing-port 舷墙上的流水孔 barge 驳船 dead weight 载重量 oil tank 油船 tonnage 吨位 container vessel 集装箱船 stern 艉部 pusher 推论 sterm frame艏柱 ferry 轮渡 mi
实用英语
iron and steel industry 钢铁工业 ironworks 铁厂 foundry 铸造车间 steelworks, steel mill 钢厂 coking plant 炼焦厂 electrometallurgy 电冶金学 powder metallurgy 粉末冶金学 blast f
英文语法词汇
Let's begin by winding the timeline back 13.7 billion years, to the beginning of time. 让我们把时间往回拨到137亿年前，也就是时间的开始。 Around us, there's nothing. There's not even time or space. 四周是什么也没有，根本
TED演讲教育篇
It's so..you know there are so many bullies,and it goes on so much 现在有很多恃强凌弱者 这种事情经常发生 and you know I think that, you should,especially if you are like a bystander. 我觉得，有些人应该， 特别是如果你就
艾伦脱口秀
Over the lights of sunset and vine We're floating away From the fortune and fame And your lips are mine They're raspberry wine Your body's a map I will follow into the sky Cause what you got Is all that I want It's all that I want And still that's no
美国乡村音乐