测量SS4型电力机车上变压器铜排母线间距应为()。
参考答案:720mm
在多数情况下,____________导致的对父母的反抗,其结果都是惩罚了自己,这种结果也是对父母的一种伤害。
After extinguishing a paint locker fire using the fixed CO2 system,the next action is to have the space().
A.opened and burned material removed
B.left closed with vents off until all boundaries are cool
C.checked for oxygen content
D.doused with water to prevent reflash