| 释义 |
Bunsen burner noun[ C ] uk /ˈbʌn.sən ˌbɜː.nər/ us /ˈbʌn.sən ˌbɝː.nɚ/ a small device that burns gas to produce a flame, used to heat things in scientific work and experiments本生灯(实验室用煤气灯) volschenkh/iStock / Getty Images Plus/GettyImages SMART Vocabulary: related words and phrases Laboratory equipment aspirator bell jar bubble chamber Buchner funnel calorimeter condenser evaporating dish flame test flask litmus microscope particle accelerator photometer pipette retort stand scope siphon synchrotron test tube transducer
Add the rest of the silver chloride and heat slowly over a Bunsen burner until it begins to fuse. Heat gently over a Bunsen burner, cool, and weigh. It is heated by one or two Bunsen burners, according to the temperature desired.— Jour. The tube is dried by aspirating air through it, and gently warming with a Bunsen burner. When it is dry, the cup is heated on a pipe-clay triangle over a Bunsen burner, or on a slab of asbestos in a muffle, to a dull-red heat. |