【单选题】The Order No.105 is so urgently required that we have to ask you to ____shipment.
【简答题】一台三相绕线转子异步电机与一台同步电机同轴联结,两台电机的定子都接到50Hz的电源上,从异步电机的集电环上引出三相电作为电源输出。两台电机定子接到电源的相序未知,若(a)异步电机为4极,同步电机为8极;(b)异步电机为8极,同步电机为4极。
【单选题】The order No.105 is so urgently required that we have to ask you to _______ shipment.
【单选题】The order No.105 is so urgently reuqired that we have to ask you to __________shipment.
【单选题】锚泊中值班驾驶员的职责包括:1严格遵守防污染规定,防止船舶对水域环境造成污染 2根据水上安全管理机关的规定,用甚高频无线电话在规定的频道上按时收听 3锚泊中发现碰撞时,应将本船所采取的措施详细记录在航海日志上
【判断题】角膜缘环异物定位法的准确性较巴尔金定位法高,原因是环固定于角膜缘,与眼球同步移动。
【简答题】The order No.105 is so urgently required that we have to ask you to speed up shipment.
【判断题】节气门位置传感器用于检测发动机的节气门开度