The Strand is one of London's busiest and most affluent streets.斯特兰德街是伦敦最繁华、最富足的街道之一。a very affluent neighbourhood富人区It's a fallacy that the affluent give relatively more to charity than the less prosperous.富人比...
Economizer leakage is a main problem in running of heat recovery boiler.省煤器泄漏是余热锅炉运行中常遇到的问题.Steam pressure exploded the boiler.蒸汽的压力使锅炉爆炸了。And then advice on choosing the methods of deoxygenation of boiler water is given...