关于中央空调节能改造方案，在中央空调的循环系统（冷却泵、冷冻泵及冷却风机）中接入变频系统，利用变频技术改变电机转速来调节流量和压力的变化用来取代阀门控制流量，能取得明显的节能效果。-Central air-conditioning energy-saving programs on access frequency central air-conditioning system in the circulatory system (cooling pumps, refrigeration pum

关于自适应反步控制的双螺旋桨自动靠泊文献，最新的-The auto-berthing of a ship requires excellent control for safe accomplishment. Crabbing, which is the pure sway motion of a ship without surge velocity, can be used for this purpose. Crabbing is induced by a peculiar ope