Hydropneumatics
液压气动学
🗣️ 情景例句
I don't know.
我不知道。
Please find enclosed our current catalogue and price-list quoting CIF New York.
随函附上我方最新的产品目录及CIF纽约报价单。
It will be about the same as it was last time.
大概和上回的订量一样。