真空 zhenˉ kongˉ

(Vacuum)

Vacuum

真空管

zhenˉ kongˉ guanˇ

(Vacuum)

Vacuum pipe, Vacuum tube

管線 guanˇ xianˋ

(Hose(s), Pipe(s), Pipeline(s), Tubing)

Pipeline(s), Pipe(s), Tubing, Hose(s)

真

Genuine, Genuinely, Real, True

Real, True, Genuine, Genuinely

空

Air, Bare, Deserted, Empty, Have free time, Hollow, In vain, Sky, Space

Empty, Have free time, Space, Air, Sky, In vain, Bare, Hollow, Deserted

管

Be in, Control, Guarantee, Heed, Key, Look after, Manage, Pay Attention To, Pipe, Provide, Regulate, Run, Straw, Tube, Wind Instrument

Control, Manage, Run, Regulate, Be in charge of, Key, Look after, Heed, Pay attention to, Provide, Guarantee, Pipe, Straw, Tube, Wind instrument

線

Circuit, Clue, Line, Path, Thread

Line, Thread, Path, Clue, Circuit