单词:vacuum tight container
单词:vacuum tight container 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
Oliver went to Target to buy a new vacuum cleaner. The vacuum cleaners at Target cost $60 to $500. The expensive ones were too bulky and, of course, too expensive. He bought the cheapest one in the store: a Dirt Devil Vibe. Its label claimed that it
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
[00:17.11]Have you ever thought about what you would save from today to show to people in the future? [00:24.19]Some people are thinking about it. [00:27.35]They are involved in a project to save objects in a container that is not to be opened until
Tight-lipped Tight with someone 今天我们再给大家讲解两个以 tight 这个字为主的习惯用语。我们要先给大家介绍一个你们经常会用到的一个字,那就是: tight-lippe
Whats A Good Insulator? How about air? Air is, in fact, a pretty good insulator, which is why styrofoam keeps things hot. Its full of air. But even better than that would be a vacuum. Because theres nothing in it to heat up, heat cant conduct through