Orificemeter
锐孔流速计, 测流孔
🗣️ 情景例句
Would you please repeat your offer again?
能否再说一遍您的优惠？
It's half past nine.
现在是九点半。
I gave him a meal.He ate the food and drank the beer.
我给了他一顿饭。他把食物吃完，又喝了酒。