
好词典

源自counter-(相反) + current(流动),17世纪首次记录用于描述水流现象。
❶ 指两股方向相反的流体或电流,常用于描述水流、气流或电流的逆向流动现象。
“The river has a strong countercurrent near the bridge.”
(桥附近的河流有一股强劲的逆流。)
“Fish often swim in the countercurrent to conserve energy.”
(鱼类常逆流游动以节省体力。)
❶ 描述事物以相反方向移动或运作的,多用于技术或科学语境中。
“The countercurrent system improves heat transfer.”
(逆流系统能提升热传导效率。)
“They installed countercurrent fans for better ventilation.”
(他们安装了逆向风扇以改善通风。)
countercurrent exchange — 指两种流体以相反方向流动时发生的热量或物质交换过程,常见于生物系统和工业设备。
“Fish gills use countercurrent exchange to absorb oxygen efficiently.”
(鱼鳃通过逆流交换高效吸收氧气。)