三极管

三极管	sān jí guǎn	triode (vacuum tube or transistor)
三	Sān	surname San
三	sān	three / 3
极	jí	extremely / pole (geography, physics) / utmost / top
管	guǎn	variant of 管
管	Guǎn	surname Guan
管	guǎn	to take care (of) / to control / to manage / to be in charge of / to look after / to run / to care about / tube / pipe / woodwind / classifier for tube-shaped objects / particle similar to 把 in 管...叫 constructions / writing brush / (coll.) to / towards