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.
首次用微量升华法证
了药材白僵蚕中含有大量的具有升华性质的化合物，在显微镜下呈现
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.
首次用微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，在显微镜下呈现结晶。
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
逐项微分的公式；并得到了计算傅立叶系数的一种简便方法.
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