Severely Unacceptable Product: It refers to the unit product that has one or more severe defects and possibly some general and/or slight defects, but without fatal defects.

• 重不合格品：有一个或一个以上严重缺陷，也可能还有一般和（或）轻微缺陷，但不包含致命缺陷的单位产品。