单词：vacuum investment casting
单词：vacuum investment casting 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
原版英语小短文
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
365个英语简短小故事
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
Scientific American(五)月
ARI SHAPIRO, HOST: One of the ingredients a successful Broadway show needs is a talented cast. That starts with talented casting directors, the people who can see a Tony-winning star in the making, say, when a performer walks into an audition as a co
2017年NPR美国国家公共电台9月
KELLY MCEVERS, HOST: The next story started when a director and producer from a tiny theater in Portland, Ore., posted a message on Facebook. He was outraged that the estate of Edward Albee wouldn't grant him rights to produce Who's Afraid Of Virgini
2017年NPR美国国家公共电台6月
There are more than 26 thousands casting companies in China, accounting for half of all the global manufacturers of casting products. But the traditional method of handmaking castings is heavily reliant on human resources and energy, and can produce
2018CRI中国国际广播电台