a substance capable of bringing about the reduction of another substance as it itself is oxidized; used in photography to lessen the density of a negative or print by oxidizing some of the loose silver
pipefitting that joins two pipes of different diameter
reducer的用法和樣例:
例句
用作名詞 (n.)
The bell reducer provides the cyclone action and the boundary layer control. 喇叭形異徑管產生旋風作用並進行邊界層控制。
The large opening of the bell reducer keeps air velocity low thus preventing moisture re-entrainment. 喇叭形異徑管的大開口度使空氣流量保持較低從而避免把水分再次帶走。