Chinese section code English section code full name English section code abbreviation

Title ti

Abstract abstract ab

Narrative descriptor de

Identifier id

Record number file number (same as down) downward

Author Authorau

Author's company source

Journal name journal j n

Publication year Publication year

Country company

File property processing code tr

Language la

Baidu domain retrieval

Specify URL ~ ~ Website:

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Special format document file type:

Return all web pages connected to URL links: