shaft well

• 井窄

shaft well的用法和样例：

例句

1. Based on experimental measurements, the mechanism of heat-transfer characteristics as well as the mechanism of flowing friction in narrow annuli is primarily analyzed.
   在实验的基础上，本文对窄环隙内的强迫对流换热特性和流动阻力特性进行了初步的分析。
2. Your radio transmission, furthermore, would probably be a narrow-band signal, to distinguish it from other transmissions in neighboring bands as well as naturally occurring noise.
   此外，你的无线电信号可能会是一个窄带信号，以区别于邻近频带中其他的自然杂波。