[img=488x302]1802d4849d2db39.jpg[/img]设传动满足条件r=(z1+z3)/n,且r=30,则齿数z1、z2及z3为:
A: [img=194x22]1802d484a57dd72.png[/img]
B: [img=185x22]1802d484ad9be97.png[/img]
C: [img=185x22]1802d484b6424f1.png[/img]
D: [img=185x22]1802d484bf36913.png[/img]
A: [img=194x22]1802d484a57dd72.png[/img]
B: [img=185x22]1802d484ad9be97.png[/img]
C: [img=185x22]1802d484b6424f1.png[/img]
D: [img=185x22]1802d484bf36913.png[/img]
举一反三
- 1802d482b1dd325.jpg设传动满足条件r=(z1+z3)/n,且r=30,则齿数z1、z2及z3为: A: [img=194x22]1802d482ba38c50.png[/img] B: [img=185x22]1802d482c2e31dd.png[/img] C: [img=185x22]1802d482cb806ae.png[/img] D: [img=185x22]1802d482d3b3ca0.png[/img]
- 180380ced19acee.jpg设传动满足条件r=(z1+z3)/n,且r=30,则齿数z1、z2及z3为: A: [img=194x22]180380cedb03f64.png[/img] B: [img=185x22]180380cee33c7a6.png[/img] C: [img=185x22]180380ceebf1a6c.png[/img] D: [img=185x22]180380cef43dfd6.png[/img]
- 18037edbe27ea21.jpg设传动满足条件r=(z1+z3)/n,且r=30,则齿数z1、z2及z3为: A: [img=194x22]18037edbea1462b.png[/img] B: [img=185x22]18037edbf3a589a.png[/img] C: [img=185x22]18037edbfbcb1f2.png[/img] D: [img=185x22]18037edc040ff35.png[/img]
- 1803c2a9d39ded4.jpg设传动满足条件r=(z1+z3)/n,且r=30,则齿数z1、z2及z3为: A: [img=194x22]1803c2a9db6e01e.png[/img] B: [img=185x22]1803c2a9e3f034f.png[/img] C: [img=185x22]1803c2a9ebd07ab.png[/img] D: [img=185x22]1803c2a9fa83025.png[/img]
- 已知序列[img=256x24]1803c8ed65826a9.png[/img] A: X(z)=2/(Z*n0) 0|Z|1 B: X(z)=3/(Z*n0) 0|Z|10 C: X(z)=1/(Z*n0) 0|Z|[img=18x14]1803c8ed6ec7788.png[/img] D: X(z)=Z*n0 0|Z|[img=18x14]1803c8ed6ec7788.png[/img]