standardsn.规格名词standard的复数形式.standards for gear accuracy齿轮精度标准standards of differentiation区分标准standards for power industry电力行业标准Standards for a Safety World标准使世界更安全standards issued by Ministry部颁标准standards and control system标准和控制Standards Information Center标准信息中心standards of students fitness学生体质健康标准standards for period division分期标准Standards of students' health外囊(棘球蚴)