aerial combining unit的用法和样例：
- Coal-rock boring machine is able to achieve cutting, loading, reproduced transport, walking and spray Dust combined unit.
- The combined unit, known as the King's Own Royal Border Regiment maintains a close link with the Priory and still recruits in this area.
- Unexpected malfunctions of a group compressor in a combined unit of hydro-upgrading and PSA during trial period are analyzed,disposed and summarized.
- The birds perched on the television aerial.