中国大学MOOC: Air,_______________, may be compressed into a small container.
举一反三
- Air, _______________, may be compressed into a small container. A: is elastic B: be elastic C: elastic D: being elastic
- Increased air （） will raise scavenge efficiency and allow a greater mass of air to be compressed； more fuel may now be burned giving an increased power.
- 智慧职教: Compressed air is supplied by air compressors to air receivers.
- The primary task of the compressed air system is to deliver the starting air necessary for _____.
- The fresh air coming in through the inner air ports， is compressed by（） to a higher pressure.