64_在采用YT - 1226压力调节器控制锅炉蒸汽压力的系统中,蒸汽压力将不可控制地超过最高 压力,其可能的原因是 。 1幅差旋钮设定的格数太大•,2给定弹簧旋钮扭得太紧;3动触头烧蚀不能闭合;4幅差弹簧 折断;5输人波纹管破裂;6与锁打相接触的幅差蹲簧盘卡住。 A. ③⑤⑥ B. ②④⑥ C. ①②④ D. ①③⑤
【单选题】When E. M. Forster writes of “the sinister corridor of our age,” we sit up at the vividness of the phrase, the force and even terror in the image.
【单选题】When E. M. Forster writes of " the sinister corridor of our age," we sit up at the vividness of the phrase, the force and even terror in the image.