【化】 碳(14)测定年代

研究者们使用放射性碳方法为在山洞中发现的22片木炭确定年代.

Conradson carbon residue test【化工】;Conradson carbon test【化工】

carbon fixation

carbon brush

Conradson carbon value

fixed carbon

cermet resistor, composite carbon resistor, film resistor, test resistor

carbon deposit

glassy carbon electrode