n diode such that light emitted at a p-n junction is proportional to the bias current; color depends on the material used
v take somebody somewhere
v have as a result or residue
v tend to or result in
v travel in front of; go in advance of others
v cause to undertake a certain action
v stretch out over a distance, space, time, or scope; run or extend between two points or beyond a certain point
v be in charge of
v be ahead of others; be the first
v be conducive to
v lead, as in the performance of a composition; Barenboim conducted the Chicago symphony for years"
v lead, extend, or afford access
v move ahead (of others) in time or space
v cause something to pass or lead somewhere
v preside over
lead的过去式和过去分词
[计] 发光二极管