essential mineral
常见例句
- Selenium is an essential mineral found in trace amounts throughout the body.
硒是人和动物机体生长发育所必需的微量元素。 - Magnesium is an essential mineral for the human body, and is needed for relaxing muscles , bone formation and activating B vitamins.
镁是人体必需的一种矿物质,主要用于放松肌肉,骨形成和激活B族维生素。 - Tobacco is an important economic crop, and nitrogen is essential mineral element. Studies on carbon and nitrogenous metabolism of tobacco have important action on tobacco production.
烟草是中国一种重要的经济作物,而氮是植物必需的矿质养分,研究烟草碳氮代谢规律,对指导烟草的生产具有重要的作用。 返回 essential mineral