求翻译：成品油一次调合合格率统计要求是什么意思？

Blending of refined oil a passing rate of the statistical requirements

Once finished oil synthese qualified rate statistical requirements

The half-finished product (between product) the qualified rate statistics and the inspection produce the installment in view of the upstream, conforms to the definition scope half-finished product (between product) to carry on the statistics, the half-finished product qualitative index and an analys

Oil product blending rate statistic requirements

Oil product blending rate statistic requirements