Yè / lún / gāo / sù / zhuǎn / dòng / shí / shè / bèi / huì / fā / chū / míng / xiǎn / de / shēng / yīn叶轮高速转动时,设备会发出明显的声音。When the turbine wheel spins rapidly, the equipment makes a noticeable sound.