Molybdenum. Essential part of some enzyme systems though deficiency has never been observed. Amount in plant foods depends on the amount in the soil.是什么意思_Molybdenum. Essential part of some enzyme systems though deficiency has never been observed. Amount in plant foods depends on the amount in the soil.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句