Permeometer
织物透气性测试仪
🗣️ 情景例句
You didn't say the magic words.
你没有念魔语。
That's a selfish point of view.
那是个自私的观点。
This platform would serve as a port and a railway station.
如果再建些伸出海面的高大的烟囱状通风管，