Sprayograph
噴霧分散度測定儀, 噴霧質(zhì)量測定儀
??? 情景例句
have been busy at work this morning
一早上都在忙著
Open your books and turn to page 20.
打開書，翻到第20頁。
I'm calling to confirm our luncheon appointment.
我打電話來，是想確定一下我們約好吃飯的事。