The removable vacuum belt filters were selected as separators and washers in production of 4A zeolite for the first time, and the result was good.是什么意思_The removable vacuum belt filters were selected as separators and washers in production of 4A zeolite for the first time, and the result was good.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句