bunsen burner
柯林斯词典
1. N a gas burner, widely used in scientific laboratories, consisting of a metal tube with an adjustable air valve at the base 本生燈; 一種實騐室使用的煤氣燈
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1. N a gas burner, widely used in scientific laboratories, consisting of a metal tube with an adjustable air valve at the base 本生燈; 一種實騐室使用的煤氣燈