noun 下载 🔗分享 二氧化硅，硅石 Silicon dioxide. Examples : "The small packets of silica gel in the new shoe box help absorb moisture and keep the leather dry. " 新鞋盒里的小包硅胶能吸收湿气，保持皮革干燥。 compound substance material chemistry geology mineral 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 二氧化硅，硅石 Any of the silica group of the silicate minerals. Examples : "The construction worker wore a mask to protect his lungs from the fine silica dust created when cutting concrete. " 建筑工人戴着口罩，以保护他的肺部免受切割混凝土时产生的细小二氧化硅粉尘的侵害。 mineral geology material substance chemistry 与AI对话词汇游戏阅读练习
