好词典

countercurrent

UK //ˈkaʊntəˌkʌrənt//US //ˈkaʊntərˌkɜːrənt//

词源

源自counter-(相反) + current(流动),17世纪首次记录用于描述水流现象。

noun

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。)

同义词:reverse flow, opposing current, backflow

adjective

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。)

同义词:opposite-direction, contrary, reverse

常见短语

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。)