基本解釋[農(nóng)業(yè)科學(xué)]必需營(yíng)養(yǎng)元素英漢例句雙語(yǔ)例句Cadmium is not an essential nutrient element for plants, but iron is the essential one.鎘是植物的非必需元素，而鐵是植物生長(zhǎng)發(fā)育過程中必不可少的元素。Cadmium is one of the most toxic heavy metals and is not an essential nutrient element for plant, animal and human being.鎘是動(dòng)物和植物的非必需元素，也是毒性最大的重金屬之一。Deficiency disease A disease caused by deficiency of a particular essential nutrient (such as a MICRONUTRIENT or trace element), usually with a characteristic set of symptoms.由于缺乏一種特殊的必要營(yíng)養(yǎng)物質(zhì)（微量營(yíng)養(yǎng)素或微量元素）而導(dǎo)致的疾病，通常表現(xiàn)出具有特征性的一系列癥狀。essential nutrient element更多例句專業(yè)釋義農(nóng)業(yè)科學(xué)必需營(yíng)養(yǎng)元素