1) Comments should be objective and fair and opinions on the academic value and whether the paper can meet the publication standards should be clear and precise to avoid ambiguity.

2) A reviewer should respect different academic views and shall not make rude, aggressive comments. Serious scientific misconduct should be reported to the editorial board.

3) If a reviewer is not familiar with or method to make a fair peer review, please inform the editorial board. For paper with conflicts in interests or having shared benefits, avoidance of peer review is required.

4) When a peer review invitation is accepted, the review comments should be submitted within the planning time; hinders or delays for completion of review should be notified to the editorial board in time.