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is determined by electron diffraction at 195-220 °C. The diffraction patterns are completely consistent with a molecule of tetrahedral (Td) symmetry. 相似文献
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The paper presents a method for finding any of the positivezeros of Bessel function Jv(x),for v 0. The zeros are computedby the process of bisection as eigenvalues of the infinite matrixobtained from the recurrence relations among the Bessel functions. 相似文献
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