Thursday, September 15, 2022
劳动生产力的人员范围,工业企业一般采用工人劳动生产率和()劳动生产率两个指标。...
Saturday, October 14, 2023
Sunday, March 10, 2024
在分度盘上若各分度孔距回转轴越远,则分度时的转角误差()。...
Sunday, September 11, 2022
Thursday, September 15, 2022
在使用电钻钻孔前应先开机运转(),观察运转状态是否良好,正常后再进行钻孔。A、一分钟B、二分钟C、三分钟D、四分钟...
Friday, December 2, 2022
Thursday, September 15, 2022
Monday, September 12, 2022
1个长V型面可以限制()。A、2个自由度B、4个自由度C、5个自由度D、2个移动自由度...
Thursday, May 4, 2023
为了保证研磨的加工精度,提高加工速度,一般研磨的加工余量在()之...
Sunday, September 11, 2022
Sunday, September 11, 2022
Thursday, September 15, 2022
对于凹模孔形状复杂,外形又不是很大的凹模,若形孔发现裂纹,可才用()修复。A、镦压法B、焊补修复法C、红热嵌镶法D、套箍修理法...
Tuesday, November 28, 2023
Thursday, September 15, 2022
压铸机开模时间,根据产品的大小,冷却状况不同,一般冷室压铸机设定...
Thursday, September 15, 2022
用环氧树脂固定模具零件时,由于只需用红外线灯局部照射,故零件不会...
Sunday, September 11, 2022
Tuesday, September 13, 2022
Thursday, September 15, 2022
Thursday, September 15, 2022
现钻一孔,钻头直径为ф10mm,切削速度选择16米/分,则钻床主...
Tuesday, September 13, 2022