质量控制操作 meaning in English

quality control operation

Recommended practice for alphanumeric computer - output microforms - operational practices for inspection and quality control
字母数字的计算机输出缩微胶片推荐惯例.检验和质量控制操作惯例
Recommended practice for com recording systems having an internal electronic forms generating system - operational practices for inspection and quality control
具有内部电子表格生成系统的计算机输出缩微胶片记录系统推荐惯例.检验和质量控制操作惯例