The passengers stepped down gingerly from the narrow gangplank.乘客们战战兢兢地从狭窄的跳板上走下船来.She wept when he ran down the gangplank; sobbed as he stood on the dock, waving.他急步走下跳板,她哭个不停.他站在码头上挥手, 她还在呜咽.The surface of the gangplan...
To anthracite, adopting off - line type CDC calciner is more reasonable.尤其是针对无烟煤, 采用离线型CDC分解炉更为合理.Different assembling positions for calciner are designed according to different coal characteristics.结合燃煤特点,分别设计了不同的燃烧器安装位...