Heron's regulator, Drebbel's thermostat, and Watt's governor bestowed on their vessels a wisp of self-control, sensory awareness, and the awakening of anticipation. 海倫的調節器，德雷貝爾的恆溫器，還有瓦特的調控器所給予他們的機器的，是一小束自我控制能力，感官上的醒覺狀態，以及對預期能力的喚醒。
The existing auxiliary wind adjustment has a nonideal quick opening characteristic and intense vortex.This paper offered a new design of the controlling valve. 對鍋爐配風二次風調節器件進行研究，現有的二次風調節風門具有極不理想的快開特性，另外風門渦流強烈。
