...fire alarms and smoke detectors.火警报警器和烟雾检测器Alarms went off and the sprinkler system turned on.顿警铃大响,漏水系统也启动了.We have fully functional smoke alarms on all staircases.我们在各层楼梯都安装有完全可用的烟雾警报器。Hundreds of lives could be sav...
于是,图K1是非平面的.The graph K 1 is hence nonplanar.天文学家通常认为,恒星际星尘都是紧靠着银河平面的.Astronomers usually assume that interstellar dust is closely confined to the galactic plane.之所以有此需要,是因为所加载荷通常是垂直于校准装置平面的.This is necessary because the...