Wednesday, January 31, 2024
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
单选题麻花钻刃磨时,其刃磨部位是()。A 前面B 后面C 副后面...
Tuesday, July 4, 2023
时间定额由()时间、()时间、()时间以及()时间四个部分组成。...
Monday, September 19, 2022
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
单选题相贯体板厚处理一般原则是:展开长度以零件的中性层尺寸为准,展开图各处高度是以零件的()尺寸为准。A 里皮B 外皮C 中性层D 接触高度...
Monday, August 7, 2023
多选题下面那些含碳量的钢叫做高碳钢?()A0.6%B1.3%C0.3%D0.8%...
Tuesday, April 30, 2024
在外力作用下,当铆接件的本身强度大于铆钉的强度时,铆钉容易被()。...
Monday, September 19, 2022
判断题如果钢接构存在焊接应力,就一定会产生变形。A 对B 错...
Sunday, March 19, 2023
Thursday, November 9, 2023
Saturday, September 17, 2022
Thursday, September 22, 2022
Monday, September 19, 2022
Thursday, September 22, 2022
Tuesday, September 20, 2022
Thursday, September 22, 2022
Saturday, September 17, 2022
Thursday, September 22, 2022
Thursday, September 22, 2022
Thursday, September 22, 2022