发电量为[tex=4.071x1.0]PZ7t4KjpYFsPs+ZTJqlPI5FufDFLzrDrsjJcOzyF3Cw=[/tex]的水轮机主轴为空心圆轴, 已知其外径 [tex=4.786x1.0]5xqhZAZN5RuvsjJEjhL5LlUy0BSUugpaDlu1gz4UnYs=[/tex], 内径 [tex=4.5x1.0]mkogORzTIeXEO4/nWUgf0qUgBklW8/Kb2FLluSRSirk=[/tex], 额定转速[tex=5.5x1.357]wEUyuo9xLLVx+rVizm519fzv20iPzmSO43z8i8zGdxsnrQOGaSRFBZicPZpHr8gj[/tex], 材料的许用扭转切应力[tex=4.857x1.357]EOYUU8RrfXkUglWg8/Cspd39uFWgn7PW3PzY2KDWA2A=[/tex], 试校核该水轮机主轴的强度.
举一反三
- set1 = {x for x in range(10)} print(set1) 以上代码的运行结果为？ A: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9} B: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10} C: {1, 2, 3, 4, 5, 6, 7, 8, 9} D: {1, 2, 3, 4, 5, 6, 7, 8, 9,10}
- 6个顶点11条边的所有非同构的连通的简单非平面图有[tex=2.143x2.429]iP+B62/T05A6ZTM0eeaWiQ==[/tex]个，其中有[tex=2.143x2.429]ndZSw3zT0QTOVLVdoUto1Q==[/tex]个含子图[tex=1.786x1.286]J+vVZa2YaMpc6mJBbqVvWw==[/tex]，有[tex=2.143x2.429]lmhx48evnQMhi03NovPXig==[/tex]个含与[tex=1.214x1.214]kFXZ1uR8GjycbJx+Ts2kyQ==[/tex]同胚的子图。供选择的答案[tex=3.071x1.214]3KinXFh3SXhZ7nIe1y9KEV6aadxhhJWeEy6Dij1iObdMUZkY6ZA5J2dVVjPSuhEf[/tex]：(1) 1 ;(2) 2 ;(3) 3 ; (4) 4 ;(5) 5 ;(6) 6 ; (7) 7 ; (8) 8 。
- 某空心圆轴, 已知所传递的扭矩[tex=4.286x1.0]DKuye48NhDJRj/l/pOWgHSwOTR6n/apaV+SrEcQGFPkM6MW9vRFKrhOf0Fas2DHn[/tex], 材料的许用扭转切应力 [tex=4.857x1.357]waVyZt12TfGVCH7LR5mQec4vlJ9KGHeK2+dpAOBvAH0=[/tex]。若轴的外径[tex=4.786x1.0]/bFeliuTu83VocT4IuNd1CDocs59UBKhnNYLyLj39eE=[/tex], 试确定其内径 [tex=0.571x1.0]QDHYLzpRIwhOrWBqGonCgg==[/tex] 。
- 某实心圆轴, 已知所传递的扭矩 [tex=4.286x1.0]JRi1Sgfrg2UGmXMsykp6WEFOmN/25FCMHuX36bFIRrHEsSHSWySSodfPTTYOye4V[/tex], 材料的许用扭转切应力 [tex=4.857x1.357]EOYUU8RrfXkUglWg8/Cspd39uFWgn7PW3PzY2KDWA2A=[/tex]。试确定轴的直径。
- 判断下列命题是否为真：（1）[tex=3.643x1.357]/5abqJjwKZ1qr+6hsVFF5EBvfq3ggOFNlHMClz0h9nk=[/tex]（2）[tex=2.929x1.357]rGJpyjIjJpbcoBTWxP0Jiw==[/tex]（3）[tex=4.5x1.357]2wycHMoqU83MyEp17iBils58bR7YLuCTI2G9NVAdlfY=[/tex]（4）[tex=5.214x1.357]CTz2gu+IIm1GgNmYMGaduCRtA41wnW4WqwRWwEhq6aA=[/tex]（5）[tex=4.857x1.357]1DcE2BMMOaZhTuxR/mjgsboXxfg5ET59Dp4I/jjEDuw=[/tex]（6）[tex=4.643x1.357]BSryrsQYOvTP2hTWRu6t4nAuJwlSs4L9jaq70EpB+Us=[/tex]（7）若[tex=6.0x1.357]y0IZLUnBO88nR8WBZYvd7QXv5S1OMINV5cQNzPyiyAc=[/tex]，则[tex=3.429x1.357]1brfPwTkVVIX4GfoMIUskA==[/tex]（8）若[tex=7.643x1.357]MhLfJXZnhbXiB0x3oNtFzThV4Y1mJxe1VYr7PkJE/T6hmTD3WWp+UxbNwvUQ6DHk[/tex]，则[tex=4.143x1.357]LZUA94ISo1po5HWsOVeBCjo0rMvj7uw3bGw5HiZenrI=[/tex]