本刊从这期开始,新辟中文和译文两种期刊文摘。目的是将国内外的科研成果和先进经验尽快地给读者传递信息。为此,我们恳切地希望读者及时提出批评,并欢迎献计献策,把这块园地办好。 This issue from the beginning of this period, the new Chinese and translation of two journal abstracts. The purpose is to transfer the information to the readers as soon as possible with the research results and advanced experience at home and abroad. To this end, we sincerely hope that readers will promptly criticize and offer advice and suggestions to run this area well.