烟纸粉尘和残余胶水沉积在扫描器检测管中容易造成跑条故障。
参考答案：对
锅炉烟温探针的作用及撤出时间如何规定？
A fire main system must have enough fire hydrants so that each accessible space may be sprayed with（）.
A.a low velocity spray applicator
B.a water spray or solid stream
C.at least two spray patterns of water
D.at least 25 psi delivered pressure
