【化】 instruction manual
consumer; user
【计】 SUB; U
【经】 consumer; consumer buyer; ultimate purchaser; user
explain; narrate; account for; illustrate; make out; say; show; specify; state
directions; explanation
【计】 DCL; declaration; elucidata; explanatory notes
【化】 specification; specify
【经】 explanation; explanatory note; justification