转盘桅杆的主杆应比较严格地找正,并调紧缆风绳,这样,利于旋转。
参考答案:对
—He_______to the meeting. Have you informed him of it?
—Sorry. I _______to.
A.hasn’t come; am going
B.didn’t come; have forgotten
C.hasn’t come; forgot
D.doesn’t come; will have
DRAPL6辊轧机最大压下率为()%。
A:25;
B:30;
C:35。