A white crystalline salt made by the action of lactic acid on calcium carbonate,used in foods (as a baking powder) and given medically as a source of calcium.是什么意思_A white crystalline salt made by the action of lactic acid on calcium carbonate,used in foods (as a baking powder) and given medically as a source of calcium.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句