start-up procedure的用法和样例：
例句
- Engine starting is accomplished by supplying air from the pneumatic system through the start valve to the starter.
发动机起动过程通过发动机增压系统提供空气经过起动活门给起动器来完成。 - The results show that the proposed sys tern can effectively decrease the stator starting current and start smoothly without impulse and oscillation.
结果表明，系统能有效地降低起动电流，且起动过程平稳，无冲击和振荡。
