constant quality control

基本解释

The result accuracy of constant value quality control assay was satisfactory.
定值质控物测定结果准确度满意。
To improve the welding quality, we introduced closed loop constant current control module and PI arithmetic.
为提高焊接质量，引入闭环恒流控制模块，采用PI算法保证焊接参数的稳定性。
Through intact quality control system and constant technological innovation, become the whole country and even whole world have nutritive food raw materials supplier of strength most progressively.
通过完整的质量控制体系和不断的创新，逐步成为全国乃至全世界最具实力的营养食品原料供应商。

General Electric would be nowhere in quality control if not for quick and constant measurement of output.
FORBES: Instant feedback in the classroom