1. 1 Please attach a letter of introduction from the first author, including the authenticity of the manuscript and the conclusion of confidential review, and promise not to contribute. Please indicate whether it is funded by the fund or a national key project, or won a scientific and technological achievement award at or above the provincial (ministerial) level, or participated in an international academic conference. Please attach a copy of the original text and the proofreader's autograph to the edited manuscript.

Please submit the manuscript in duplicate 1.2 (where 1 should be the original manuscript), so that two reviewers can review the manuscript at the same time and shorten the manuscript cycle. Please send the manuscript that needs to be processed quickly on a separate floppy disk, or send it by email or fax.

1.3 Please write down the author's name, unit, address, postcode and telephone number clearly, and please indicate the detailed address at the end of the article for contact.

1.4 Please remit the manuscript processing fee to 40 yuan, and the editorial department will register the manuscript immediately after receiving it and give a receipt. If the author is not contacted within 6 months from the date of manuscript registration, the author can change the journal and please inform the editorial department. Please send the manuscript fee as soon as possible after receiving the notice.

1.5 Return the manuscript revised by the author. If it has not been revised for more than 3 months, it will be treated as a new manuscript in principle. If it has not been revised for more than half a year, it will be treated as a withdrawal.

1.6 The editorial department has the right to modify the submission.