Orificemeter
锐孔流速计, 测流孔
🗣️ 情景例句
Are parcels claimed here?
包裹是在这里领取吗？
What will you do to help protect our environment from being seriously polluted?
你将为帮助保护我们的环境免遭到污染做些什么呢？
He's in bed, doctor.
他在床上呢，医生。