Dry a filter paper in an oven. Weigh it and then use it to filter 500 ml water sample. Dry the filter paper and weigh again.是什么意思_Dry a filter paper in an oven. Weigh it and then use it to filter 500 ml water sample. Dry the filter paper and weigh again.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句