After some initial problems, acetone was successfully produced in quantity.解决了最初的一些问题之后，终于成功地制造出了大量丙酮。Ores are also being obtained in quantity from other countries.矿石也从国外大量输入.It's cheaper to buy goods in quantity / ...

in quantity的音标：in quantity的英式发音音标为：[in 'kwɔntiti]in quantity的美式发音音标为：[ɪn 'kwɑntɪti]...

大量...