elementsn.要素，元素；基本原则；恶劣天气element的复数形式elements of platine group铂族元素elements of fringe search附带搜查要件elements accumulation rate元素聚集速率elements combination types元素组合类型elements of product design产品设计要素elements of inverse matrix逆元素elements of tax accounting税务会计要素elements of Chinese symbol中华符号元素elements of halogen family[化] 卤族元素elements ot psychoanalysis心理分析元素