With his effort, and the support of his mother, his family and his community, he became a principal member in the double bass segment of the Berlin Philharmonic Orchestra.
在他自己的努力下，在他母亲，家人和社团的支持下，他已经成为了柏林爱乐乐团低音贝司声部的主要成员。
The differential coefficient of smooth function was taken as a mother wavelet for researching the sensitivity segment of inflexion of pipeline leakage signal.
以光滑函数的一阶导数作为小波母函数 ，研究了管道泄漏特征信号拐点区间的敏感性 ，突出小波变换系数的局部极值性。
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