对于公司来说，商学院高管进修课程衰退传递出的只有一个信息：现在是买方市场，顾客为王。
For corporations, there is just one message to come out of the recession about business school executive development programmes: it is a buyers' market where the customer is king.
声频谱包络的特点和音管的传递函数有相应的关系。
The envelope of sound spectrum is related to the transfer function of bore.
用有限元传递矩阵法分析火炮身管固有振动特性，矩阵阶次低，计算所得的固有频率与实际固有频率接近，误差在允许的范围内。
Matrix step is low by using the finite element transfer matrix method. Natural frequency by calculation approaches to actual natural frequency and the error is allowable.
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