刮料机每天需润滑的部位及加注量?
参考答案:
(1)内齿圈一小齿轮;
(2)滚动轴承滚道;
(3)主传动轴承;
(4)每天各注嘴加注2#极压锂基脂0.05Kg。
All but one ______ here just now.
A.is B.wasC.has been D.were
Thanks ________ your help, Mary.
A.in
B.to
C.for
D.at