A pigeon emerges, wings flapping noisily, from the tower.一只鸽子从塔里钻出来，扑扑地拍打着翅膀。I don't care where the money comes from — that's not my pigeon.我不管钱从哪儿来,那不是我的事.The pigeon homed from a distance of 100 miles.鸽子从百英里之外...
装在反应器上部的冷却器使热的产品气体骤冷以防止反应到底.The cooler located above the reactor quenches hot product gases to prevent reaction to completion.新点火系统的应用可使热媒炉完全实现自动化,经济效益显著.The new ignition system can use andas fuel and realizes igniting a...