Thursday, September 22, 2022
Thursday, September 22, 2022
Sunday, September 18, 2022
问题:按照齿廓曲线的不同,()齿轮传动平稳、承载能力强,应用最为广泛。...
Wednesday, September 21, 2022
Thursday, September 22, 2022
问题:龙门剪切时,上下刀片之间()间隙,否则剪下的材料边缘上会产生许多毛刺...
Thursday, September 22, 2022
Thursday, September 22, 2022
问题:单选题培训的基本方法是()。A 示范B 讲解C 讲解与示范D 不确定...
Thursday, November 9, 2023
Saturday, September 17, 2022
Thursday, September 22, 2022
Thursday, September 22, 2022
Saturday, April 1, 2023
问题:问答题为什么要对龙门剪板机上的刀片间隙进行调整?...
Wednesday, January 31, 2024
Thursday, September 22, 2022
Thursday, September 22, 2022
Monday, September 19, 2022
Friday, September 16, 2022
Thursday, September 22, 2022
问题:单选题某些强度较高的材料在冲裁或剪切前,需要安排()工序进行降低硬度处理。A 调质B 高温回火C 退火D 回火...
Tuesday, July 4, 2023
Tuesday, September 20, 2022