问题:选择铰削余量时,应考虑孔的尺寸精度、()、()、()和铰刀的类型等。
Saturday, March 11, 2023
问题:写出下列钢的代号:45号钢是();碳8钢是();65锰是()。
Monday, June 26, 2023
问题:以下磨料最细的是()。A、W40B、W20C、W14D、W5
Sunday, September 11, 2022
Monday, October 16, 2023
问题:錾子后角的作用是减小后刀面与工件切削面之间的摩擦,引导錾子顺利錾削。
Thursday, March 7, 2024
Tuesday, September 13, 2022
问题:工具制造厂出厂的标准麻花钻,顶角为()。A、110º±2ºB、118º±2ºC、125º±2º
Thursday, October 13, 2022
Wednesday, June 7, 2023
问题:在铝、铜等有色金属毛坯上划线,一般涂()。A、白石水B、品紫C、锌钡白
Sunday, November 27, 2022
问题:写出下列钢的代号:45号钢是();碳8钢是();65锰是()。
Monday, June 26, 2023
Wednesday, June 14, 2023
Thursday, March 7, 2024
Tuesday, September 13, 2022
Monday, October 16, 2023
Sunday, February 12, 2023
Thursday, February 1, 2024
问题:Z525立钻的变速箱能获得九种不同转速,转速变化通过改变装在两根花键轴上的()滑移齿轮完成。A、两组联合B、两组三联C、三组三联
Tuesday, September 27, 2022
问题:溢流阀的作用是配合油泵等,溢出系统中多余的油液,使系统保持一定的()。A、压力B、流量C、流向D、清洁度
Sunday, November 12, 2023
Sunday, October 2, 2022
Thursday, November 3, 2022