A . 2
B . 4
C . 8
D . 16
[填空题] 在其他条件不变的情况下,载荷增加一倍时,球轴承的寿命将减为原来的()。
[单选题]当圆截面梁的直径增加一倍时,梁的强度为原梁的______倍,梁的刚度为原梁的______倍。( )A.16,16B.8,8C.16,8D.8,16
[单选题]当圆截面梁的直径增加一倍时,梁的强度为原梁的______倍,梁的刚度为原梁的______倍。( )A.16,16B.8,8C.16,8D.8,16
[单选题]当圆截面梁的直径增加一倍时,梁的强度为原梁的______倍,梁的刚度为原梁的______倍。( )A.16,16B.8,8C.16,8D.8,16
[单选题]当圆截面梁的直径增加一倍时,梁的强度为原梁的______倍,梁的刚度为原梁的______倍。( )A.16,16B.8,8C.16,8D.8,16
[单选题]当圆截面梁的直径增加一倍时,梁的强度为原梁的______倍,梁的刚度为原梁的______倍。( )A.16,16B.8,8C.16,8D.8,16
[单选题]当圆截面梁的直径增加一倍时,梁的强度为原梁的______倍,梁的刚度为原梁的______倍。( )A.16,16B.8,8C.16,8D.8,16
[单选题]当圆截面梁的直径增加一倍时,梁的强度为原梁的______倍,梁的刚度为原梁的______倍。( )A.16,16B.8,8C.16,8D.8,16
[单选题]当圆截面梁的直径增加一倍时,梁的强度为原梁的______倍,梁的刚度为原梁的______倍。( )A.16,16B.8,8C.16,8D.8,16
[单选题]当圆截面梁的直径增加一倍时,梁的强度为原梁的______倍,梁的刚度为原梁的______倍。( )A.16,16B.8,8C.16,8D.8,16