the china networkworld is published on every monday. the publication is distributed through subscription via nation-wide post offices, controlled circulation and newsstand sales.
《网络世界》每周一出版,采取邮局订阅,定向赠阅和零售并举的发行方式。
a non-linear dynamic mathematic model for water circulation system of controlled circulation boiler has been established by using distributed parameters.
建立了分布参数的控制循环锅炉水循环系统的非线性动态数学模型。
the pressure parts construction, design criteria of water wall, calculation procedure of water circulation and selection of critical parameters for controlled circulation boiler are introduced.
this paper focuses on the application of method of controlled circulation in the quasi three dimensional design process of centrifugal impeller.
对控制环量方法在离心叶轮準三元设计中的应用展开了研究。
two controlled circulation boilers were installed in dagang power plant technique updating engineering. chemical cleaning was achieved before start of the boiler unit.