以下哪项不是生产中加压过滤机主轴压死的原因()。
A、入料浓度过高
B、主轴减速器故障
C、入料中粗颗粒含量太高,造成物料在槽体内沉淀
D、主轴电机故障
参考答案:A
—Could you tell me at the meeting?
—Sorry,I don’t know. I didn’t go to the meeting that day.
A.what does he say
B.what he says
C.what he said
D.what did he say
操作机构可分为()。
A、CS;
B、CD;
C、CT;
D、CW