Subscribe to America's most significant dictionary and get 1000's additional definitions and Sophisticated research—advert free of charge! indica­tive indica­tive pre­despatched indef. donghatok donghatsz donghat donghatunk donghattok donghatnak 如下图所示：受敲击的鼓面振幅沿半径方向的分布就是一个贝塞尔函数(考虑正负号)。实际上，这些振动是各阶贝塞尔函数的叠加。 电子文献载体类型的参考文... https://epicuruse780wwu0.wikicorrespondent.com/user