卫星设备射频线缆及中频线缆应安装避雷器。避雷器接地()必须与机房接地排接通牢靠,接地线的规格应符合设计要求。
A.铝线;
B.铁线;
C.铜线;
D.电线
参考答案:C
Mother told me to play with our little guest. , though unwillingly.
A.So did I
B.I didn't
C.So I did
D.Neither I did
点火过程中、冲转、升速、并列、升负荷及停炉过程中降负荷、解列、汽机停机等引起蒸汽量变化产生虚假水位时应加强()。