Sunday, September 11, 2022
问题:任何工件在空间,不加任何约束,它有()个自由度。...
Friday, September 16, 2022
问题:在尺寸链中,当其他尺寸确定后,新增加的1个环,是()。...
Friday, September 16, 2022
Friday, September 16, 2022
Saturday, September 17, 2022
问题:冷处理的常用温度为-80-60℃o,特殊情况下冷处理温度甚至达到...
Friday, September 16, 2022
问题:在安放百分表、千分表和杠杆表等量具时,应使其测头运动方向()于被...
Friday, September 16, 2022
Friday, September 16, 2022
Friday, September 16, 2022
问题:精密磨床砂轮主轴的表面磨损或轴颈有丝纹,其精度超过允许误差时,一...
Sunday, September 11, 2022
Friday, September 16, 2022
Friday, September 16, 2022
问题:测量工件外尺寸时,游标卡尺测量面的连线应()于被测量表面。...
Friday, September 16, 2022
Friday, September 16, 2022
问题:相关原则是图样上给定的()两个相互有关的公差原则。...
Friday, September 16, 2022
问题:测绘导轨直线度误差曲线图时,测量中依次移动水平仪垫铁,根据测量值...
Sunday, September 11, 2022
Sunday, September 11, 2022
Friday, September 16, 2022
Sunday, September 11, 2022
问题:用节流阀代替调速阀,可使节流调速回路活塞的运动速度不随负荷变化而...
Sunday, September 11, 2022