单词：copper alloy arc welding electrode
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This is Scientific American's sixty seconds science, I'm Christopher Intagliata. Got a minute? Instead of installing solar paint on your roof how about just giving a house new paint job of cause you'd have to sure to use solar paint. That's what to a
Scientific American(十二)月
Speaking of Olympic trivia, the Sochi Olympics are already breaking many records. Probably the most surprising is the cost of the games. According to some estimates, this will be the most expensive Olympic Games ever, summer or winter. In fact, at 51
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图片1 metal n. 金属 例句：This metal is harder than that one. 这种金属比那种硬。 metallic adj. 金属(性)的 例句：Fannie' s shovel struck against something metallic when she wasplanting flowers in the garden. 当芬妮在花园里种
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What Makes White Gold White? Many people associate the metal gold with the color gold. But, some gold jewelry is not golden at all: its white. 图片1 Golden Color Gold is one of the heaviest and softest metals. Pure gold, called 24-carat gold, is so
英语听力文摘 English Digest
Bacteria Discovered To Recharge Cell Phone A microbe called Rhodoferax Ferrireducens，found in the mud at Oyster Bay，Virginia，has been discovered to transfer electrons directly onto an electrode
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Many people associate the metal gold with the color gold. But, some gold jewelry is not golden at all: its white. 很多人都认为金子就应该是金色。但一些黄金首饰的颜色并不是金色，而是白色。 Golden Color 金色 Gold is
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What Makes White Gold White? Many people associate the metal gold with the color gold. But, some gold jewelry is not golden at all: its white. Golden Color Gold is one of the heaviest and softest metals. Pure gold, called 24-carat gold, is so soft th
英语听力文摘 English Digest
Time for M.I.T.s Clean Energy Prize. The annual competition gives teams of university students a chance to compete for $200,000 to kick-start their new clean energy business. One finalist designed a compression technology for natural gas wells that w
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This is Scientific Americans 60-Second Science. I am Cynthia Graber. This will just take a minute. Solar panels typically convert sunlight into electricity or heat. But photosynthetic vegetation converts sunlight into chemical energy. Now M.I.T.s Dan
Scientific American(八)月
唐顿庄园第一季第四集_2 [INT. KITCHENS - DAY] ANNA Ugh. MRS PATMORE You've got a cold, I want you out of here. MRS HUGHES Anna, there you are. You know I'm out tonight, because I don't want to come home to any surprises. MRS PATMORE (laughs)
唐顿庄园第一季
Lesson 37 All About A Penny 第37课 关于便士 When I was a little boy, pennies, and halfpennies, and farthings were made of pure copper. But copper is too soft a metal to stand the rubbing which coins get. So these old pennies soon became so smoo
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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
The Cleaning Power of Soft Drinks! 饮料的神奇清洁能力 Lets begin with a cleaning tip: If you have some tarnished or corroded brass that you want to clean, an old brass candlestick for example, you can use Coca-Cola, or any other cola soft dr
英语听力文摘 English Digest
The Oscar statuette is the symbol of the Academy Awards. Here are some facts about the trophy itself. 奥斯卡小金人是奥斯卡金像奖的象征。这里有一些关于奖杯本身的事实。 1. The original design of Oscar was by MGM art dire
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