单词:gas-jet vacuum pump
单词:gas-jet vacuum pump 相关文章
She inspected the carpet for small items. She saw a paper clip and a rubber band. She picked them up. She put them into a little box on the kitchen counter. She plugged in the vacuum cleaner. She turned on the switch. The cat ran out of the room. She
This is Scientific American 60-Second Science. I'm Cynthia Graber. This will just take a minute. The fridge is one of your home's biggest energy hogs. Better insulation can make refrigerators much more efficient. And a panel encasing a vacuum is one
Pump Premium Fuel, Eat Gourmet Food at Washington Gas Station WASHINGTON Imagine putting gas in your car and sitting down to a delicious meal - all in the same place. You can do that in Washington, D.C., where a combination gas station and convenienc
今天要学的一个词是:pump。pump,Pump一般是指泵,或抽水机。可是今天讲的pump是指汽车加油站的泵。英国石油公司宣布停止在阿拉斯加的石油开采,《洛杉矶时报》的标题说:Oilfield Closure t
CAPE CANAVERAL Two American astronauts will venture outside the International Space Station Monday to stow a failed coolant pump and extend the outpost's Canadian railway. Wearing protective spacesuits in a deadly vacuum(真空) environment, Stephen
Its been a long time since Ive seen my friends Steve and Liz, and I thought this would be a good weekend to drive up to Santa Barbara to see them. Gas prices have been through the roof, but I decided to take the short road trip anyway. Before getting