元件: [电工] element; component; part; cell; organ 短语和例子传输元件 transfer element; 电光元件 electrooptic cell; 电路元件 circuit component; 敏感元件 sensor
项: Ⅰ名词1.(颈的后部) nape (of the neck) 短语和例子颈项 neck2.(款项) sum (of money) 短语和例子进项 income; 欠项 liabilities; 用项 items of expenditure; expenditures3.[数学] (不用加、减号连接的单式) term 短语和例子同类项 similar terms; 外项 e