piston
n
1 round plate or short cylinder,usu made of metal or wood, that fits closely inside another cylinder or tube and moves up and down or backwards and forwards inside it; used eg in steam or internal combustion engines to cause other parts to move by means of a connecting rod (`piston-rod) 活塞. =>illus 見插圖.
2 sliding valve in a trumpet or other brass wind instrument (銅管樂器上的)活門.
?? 擴展釋義
*['pist?n]n. 活塞, 活塞閥鍵【醫】 活塞(如注射器的)
?? 醫學釋義
活塞,柱塞
?? 同詞根單詞
pipen. 管子;煙斗;管樂器;(管風琴的)音管;
vt. 以管輸送;用管樂器演奏;尖聲唱;
vi. 吹奏管樂器;尖叫;尖聲地說(或唱),尖聲啼鳴;[航海] 吹長哨;