The diesel engine must be started before it can run by it self For this purpose （） has to be used.
举一反三
- Before starting a diesel engine that has an engine driven lube oil pump， the engineer should （）.
- How should you warm up a diesel engine that has not been run for some time? （）
- The purpose of the flywheel of a diesel engine is to （）.
- The marine diesel engine is a type of diesel engine used on ships The （） of its operation is not very difficult to understand.
- What is the purpose of the intake/exhaust valves in a diesel engine? （）