Abstract : the working principle and structure as well the applicable range of anti - backflow apparatus are presented in this paper . also the matters that need attention in use are pointed 文摘:介绍了倒流防止器的构造特点、工作原理，并指出其应用范围及使用时应注意的事项。
If cold or very hot weather persists , the observatory will repeat the special announcements while the corresponding weather warning is in force , to remind the public to take necessary actions 如天气持续寒冷或酷热，天文台会在有关警告生效期间，继续发出特别报告提醒市民应注意的事项。
If cold or very hot weather persists , the observatory will repeat the special announcements while the corresponding weather warning is in force , to remind the public to take necessary actions 如天气持续寒冷或酷热，天文台会在有关警告生效期间，继续发出特别报告提醒市民应注意的事项。
A distinguished panel of experts will relate how best to negotiate and successfully close deals from first hand experience , providing investors and entrepreneurs with model examples of how to do business 多位知名的业界专才届时将以亲身经验讲解商贸谈判技巧与交易时应注意的事项，让投资者与企业家从中取经借镜。
This article introduces the building of database of special topics in agricultural machine photograph , points out matters needing attention for university library assistant to build database of special topics 摘要重点介绍了我馆“农业机械产品图片专题数据库”的建设步骤，总结了高校图书馆进行专题数据库建设时应注意的事项。
One assists educational institutions to recruit staff , and job - seekers to obtain vacancy information , practical tips for applying for positions in educational organisations and other useful reference 其中一个网页协助教育机构招聘人手，并向求职人士提供各类资料，包括职位空缺资料、申请教育机构职位时应注意的事项和其他参考资料。
In this paper , the period , place and tools for collecting marine algal specimens , the matters for attention during the collection period and the methods for the processing and preservation of marine algal specimen are expounded 摘要阐述了海藻标本的采集时间和地点、所需的采集工具、采集过程中应注意的事项以及标本的制作和保存方法。
