激光二极管

laser diode

to arouse / to incite / to excite / to stimulate / sharp / fierce / violent

laser

light / ray / CL:道[dao4] / bright / only / merely / to use up

two / 2 / (Beijing dialect) stupid

extremely / pole (geography, physics) / utmost / top

photodiode / light-emitting diode (LED)

diode / vacuum tube

variant of 管[guan3]

surname Guan

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[ba3] in 管...叫 constructions / writing brush / (coll.) to / towards