T36×12/2-3左--表示梯形螺纹,螺纹大径为36mm;导程为12mm螺纹线数为双线,3级精度,左旋螺纹。()
参考答案:对
—Would you mind if I sit here?
— ___________. It's for the old woman there. [ ]
A. Never mind
B. Of course not
C. Not at all
D. You'd better not
变压器容量在10000kVA以上时,一般气体继电器气体容积整定为( )。
A.100cm3; B.200cm3; C.250cm3; D.350cm3。