Eem
[医][=emission electron microscope]发射式电子显微镜
🗣️ 情景例句
I'm gonna do an article
我准备写一篇文章
What's been the consumer reaction to your product?
消费者对你们的产品有过什么反映？
and we control it by means of the mud which we circulate down the drill pipe.
我们让泥浆顺着钻杆向下循环，用这种方法来控制压力。