control step的用法和样例：
例句
- The hydrolysis rate of cellulosic waste was slower, and that was the control step for methanization of cellulosic waste.
纤维类废物产甲烷速率相对较低，水解是其厌氧产甲烷化过程的控制步骤。 - The series of quality control steps built into the process also provide an excellent assurance of the quality of individual and laboratory performance.
并入该程序的一系列质量控制步骤也为个人和实验室的操作质量提供了良好的保证。
