用交流电磁化作()检验时,需作断电相位控制
参考答案:剩磁法
—The party is so great!
—Yes, but Johnson, we’ve got to go home. _______
—Thank you. See you later!
A.See you.
B.I’m very sorry.
C.What about you?
D.Enjoy yourself!
简述容积式安全阀调整的过程。