质量

❶mass
❷quality
提高产品～improve the quality of products/～安全 quality safe (QS)/～差of poor (or low)quality;inferior/～好（高）of high quality; superior/～差价 price differentials on quality /～单位mass unit/～第一quality first/～观念awareness of the importance of product quality/～管理标准quality control standard/～监督检验quality supervision and inspection(or testing)/～论证quality certification/～认证体系认证证书certificate of the system of quality certification