Abstract: By microsublimation, the powder of Bombyx batryticatus was first proved to contain a lot of sublimation, and the sublimation takes on the fmstwork under the microscope.
首次用
量升华法证
了药材白僵蚕中含有大量的具有升华性质的化合物，在显镜
霜花状结晶。
Abstract: By microsublimation, the powder of Bombyx batryticatus was first proved to contain a lot of sublimation, and the sublimation takes on the fmstwork under the microscope.
首次用量升华法证了药材白僵蚕中含有大量的具有升华性质的化合物，在显镜霜花状结晶。
A relatively direct method is expounded in this paper to prove the termwise differentiation of power series, and a simple method is expressed to calculate the Fourier coefficient.
用比较直接的方法证幂级数的和函数在收敛域内可以
分的公式；并得到了计算傅立叶系数的一种简便方法.
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