| 单词 | bunsen burner |
| 释义 | bunsen burner (once / 49248 pages) n A bunsen burner is a gas heater used in many laboratories. If this word doesn't give you flashbacks to high school chemistry class, then we don't know what will. About 200 years ago, German chemist Robert Bunsen was born — no doubt unaware that his surname would eventually become inseparable from a common piece of laboratory equipment that he would later invent: the bunsen burner. Its great advantage over earlier burners was the air valve that allows variable amounts of air to be mixed with the fuel. If you've ever taken a chemistry class or worked in a laboratory, you probably used a bunsen burner to create a chemical reaction. WORD FAMILYbunsen burner: bunsen burners USAGE EXAMPLESIn this video, from students at Minnetonka High School in Minnesota, the Bunsen burners are the only thing that didn’t freeze. Science Magazine(Nov 22, 2016) Though he developed a good understanding with Pulisic, Altidore’s partnership up front with Bobby Wood had all the chemistry of a busted Bunsen burner. The Guardian(Sep 07, 2016) “Hillary is ready to make history,” Kaine said with an intensity that was more Bunsen burner than bonfire. Washington Post(Jul 13, 2016) n a gas burner used in laboratories; has an air valve to regulate the mixture of gas and air Syn|Hyper bunsen, etna gas burner, gas jet burner such that combustible gas issues from a nozzle to form a steady flame |
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