It is very necessary that each cylinder （） before the charged air is compressed.
举一反三
- It is very important that each cylinder should be （） scavenged before the charged air is compressed.
- The compressed air is admitted to each cylinder through a cam operated by starting air valve when the piston has just passed its （）.
- The primary task of the compressed air system is to deliver the starting air necessary for _____.
- Compressed air is supplied by air compression to （）. A: the air receivers B: the starting valves C: the cylinder covers D: the distributor
- In an automobile engine, the vaporized fuel is mixed with air, compressed in the cylinder and by a spark. A: blazed B: flamed C: ignited D: exploded