内径百分表的测量范围有()等。 A: (10~18)mm B: (18~35)mm C: (35~50)mm D: (50~100)mm E: (100~160)mm
内径百分表的测量范围有()等。 A: (10~18)mm B: (18~35)mm C: (35~50)mm D: (50~100)mm E: (100~160)mm
钢轨侧面磨耗在距踏面(标准断面)下测量: 14 mm处|14 mm范围内|16 mm处|16 mm范围内
钢轨侧面磨耗在距踏面(标准断面)下测量: 14 mm处|14 mm范围内|16 mm处|16 mm范围内
滚动轴承代号7307C表示轴承内径尺寸为()mm A: 7 B: 14 C: 35 D: 70
滚动轴承代号7307C表示轴承内径尺寸为()mm A: 7 B: 14 C: 35 D: 70
What was another contribution by Edison to the movies() A: He introduced the 35 mm standard machine to the world. B: He introduced the 35 mm as the international standard film width. C: He created a 35 mm standard device for showing movies. D: He created his own standard devices for showing 35 mm film.
What was another contribution by Edison to the movies() A: He introduced the 35 mm standard machine to the world. B: He introduced the 35 mm as the international standard film width. C: He created a 35 mm standard device for showing movies. D: He created his own standard devices for showing 35 mm film.
详图索引符号中的圆圈直径是( ) A: 8 mm B: 10 mm C: 12 mm D: 14 mm
详图索引符号中的圆圈直径是( ) A: 8 mm B: 10 mm C: 12 mm D: 14 mm
当抹灰层厚度大于或等于( )时,应采取加强措施。 A: 25 mm B: 30 mm C: 35 mm D: 40 mm
当抹灰层厚度大于或等于( )时,应采取加强措施。 A: 25 mm B: 30 mm C: 35 mm D: 40 mm
详图编号常注写在直径为()的粗实线圆内。 A: 10 mm B: 12 mm C: 14 mm D: 16 mm
详图编号常注写在直径为()的粗实线圆内。 A: 10 mm B: 12 mm C: 14 mm D: 16 mm
齿轮m =3,z=35,齿顶圆直径等于 mm,齿根圆直径等于 mm,分度圆直径等于 mm
齿轮m =3,z=35,齿顶圆直径等于 mm,齿根圆直径等于 mm,分度圆直径等于 mm
35、尺寸(40±0.02)mm中,+0.02mm称为
35、尺寸(40±0.02)mm中,+0.02mm称为
轨距是两股钢轨轨头项面下范围内两钢轨作用边之间的最小距离() A: 14 mm B: 15 mm C: 16 mm D: 18 mm
轨距是两股钢轨轨头项面下范围内两钢轨作用边之间的最小距离() A: 14 mm B: 15 mm C: 16 mm D: 18 mm