单词：metallic piston rod packing
单词：metallic piston rod packing 相关文章
Packing 包装 Brief Introduction 包装包括运输包装（外包装或大包装）和销售包装（内包装或小包装）。这些都是为了保护商品的品质完好和数量完整而采取的
商务英语300句
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用Mp3背六级单词
Unit 13 Packing 包装 1. These goods are very expensive, and easily damaged. 这批货很贵又容易被损坏。 2. Last time you told me that you wanted the most economical packaging. 上次你跟我说要最经济的包装。 3. We always take ex
外贸实务口语
A:Welcome to Als Garage. What seems to be the problem? B:No problem at all! I am taking a long road trip and I want to make sure my car is in good mechanical condition. A:Very wise decision. When was the last time you had a tune up? B:Not that long a
纯正地道美语
本单元是关于出差打包的对话 Tim: Hurry up Alice! Alice: I'm going as fast as I can. Tim: The plane's going to take off without us at this rate. You've not even finished packing yet! Alice: Don't hassle me! I couldn't just walk out in the middle o
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This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? Forget the scalpel, researchers at Johns Hopkins University have created a tool that can move easily through tissue, potentially making biopsies much less invasive.
Scientific American(一)月
Ocean Floor Reveals Past Climate Changes Time capsule Lamont research professor Maureen Raymo, the director of the Core Repository, slides open a long, narrow drawer from the cabinet. Like thousands of others here, the drawer contains a long, thin cy
VOA标准英语2012年(一月)
This Internal Combustion Engine is 50% More Efficient 新型内燃机效率提高50% Internal combustion engines in cars may be on their way out, but experts agree it will take a few decades before electric-powered vehicles become dominant. Meanwhile
VOA标准英语2016年(三月)
包装 Packing （一） The next thing I'd like to bring up for discussion is packing. 下面我想提出包装问题讨论一下。 We'd like to hear what you say concerning the matter of packing. 我很想听听你们就包装问题发表意见。
实用英语
Coffee, computers and piston engines - could we imagine a world without them? These are intricate parts of every day life for most of us and the knowledge that led to them was either invented by or passed down through the ancient Muslim world. That's
VOA标准英语2010年(二月)
A group of senior students from Zhejiang University have successfully developed an air hand-washing device. 浙江大学的一队大四学生成功研制出了空气洗手装置。 The device utilizes an infrared ray induction system, which detects t
英语新闻
Track One From a very young age I had a bit of a fascination with flying 我自儿时便有些迷上了飞行 Bit of a fascination with speed 着迷那样的高速（驾驶） As I went through school and into my A-Levels I wanted to pursue a flying
英语PK台
Metallic，队如其名，是世界首屈一指的重金属乐队，比Bon Jovi更有名，比枪花更严肃。Metallica在不断的创造着新的音乐元素：Thrash Metal、Death Metal、Speed Metal、Black Metal，他们不甘心看着重金属摇
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