noun 下载 🔗分享 锆 A chemical element (symbol Zr) with an atomic number of 40, a strong, lustrous, grey-white transition metal mainly used as a refractory and opacifier. Examples : "The scientist used zirconium in the lab experiment because it's a strong, light-reflective metal. " 科学家在实验室实验中使用了锆,因为它是一种坚固且能反射光线的金属。 element chemistry material substance science 与AI对话词汇游戏阅读练习