-
[哈尔滨工业大学] 哈尔滨工业大学2010年双控专业课考研真题试卷(回忆版)
第一题,数学建模两个质量块,中间一根弹簧,一个阻尼器,对左边的质量块施加力,以两个质量块的位移为X1,X2,Y=X1;确定微分方程,求Y/U2014-04-30 编辑:max
Severity: Notice
Message: Memcache::connect(): Server 127.0.0.1 (tcp 11211, udp 0) failed with: Connection refused (111)
Filename: libraries/Cache_file.php
Line Number: 28
Severity: Warning
Message: Memcache::connect(): Can't connect to 127.0.0.1:11211, Connection refused (111)
Filename: libraries/Cache_file.php
Line Number: 28
2014-04-30 编辑:max