- According to the source,migration and accumulation characters of oil and gas in Changdi area,the oil-gas reservoir forming system may be divided into two clas-ses of middle-west part and east part.
- There is a vein of melancholy in his character.
- He looks a suspicious character.
- Success and wealth transformed his character.
- An accumulation of data to be processed.
- The book depicts him as a rather unpleasant character.