The process of loop scavenge is that the exhaust will be via ports （） the air ports and controlled by the same piston.
举一反三
- The two-stroke cycle begins with the piston coming up from the bottom of its stroke， with scavenge ports in the sides of the cylinder being （）.
- The scavenging air ports are located at （） that they are just exposed by the upper edge of the piston when the piston is in the bottom dead center position.
- The fresh air coming in through the inner air ports， is compressed by（） to a higher pressure.
- All three systems have the ports （） to swirl the incoming air and direct it in the appropriate path.
- If a crankcase explosion occurs in a diesel engine, you should stop the engine and（） A: immediately open all crankcase relief ports B: increase crankcase exhauster speed to draw cool air into the engine C: allow the engine to cool naturally D: increase crank case scavenge air to remove unburned gase