... blue core glass syringe 蓝芯玻璃注射器 blue flame burner蓝焰灯 blue litmus paper 蓝石蕊指示剂条 ...
双语例句
1
Test B: Bunsen Burner A 3/8〞Bunsen burner was adjusted to a quiet flame with a 1-1/2〞inner blue cone and then overturned on the test material, exposing material to the flame for 5 minutes.