The login credentials used to access a server and its databases determine the kinds of data sources that server explorer can retrieve and display 用于访问服务器及其数据库的登录凭据决定服务器资源管理器可以检索和显示的数据源种类。
By carrying on experimental study to the ignition performance of the natural gas high speed burners under different conditions , the influence factors are probed such as the type of the gas source , the combustion air pressure , the gas pressure , the proportion of air and gas , gas flow and electrode to the ignition performance of natural gas high speed burner 摘要在不同的条件下对天然气高速烧嘴的点火性能进行了实验研究,探讨了气源种类、助燃空气压力、燃气压力、空气与燃气的比例、气体流量、点火电极等因素对天然气高速烧嘴的点火性能的影响。