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natural gas to hydrocyanic acid
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natural gas to hydrocyanic acid
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工学
天然气化工
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natural gas to hydrocyanic acid
天然气制氢氰酸
以天然气、氨气为原料,在高温和催化剂作用下发生反应直接制取氢氰酸的工艺。主要使用天然气制氢氰酸,中国的氢氰酸主要来自丙烯腈副产。
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radioulnar syndesmosis
Radio Vatican
Radio Visibility
radio war
radio wave
radiowave dielectric spectroscopy
radio wave diffraction propagation over obstacles
radio waveguide
radio wavelength band
radio wave penetration method
radio wave propagation
radio wave propagation during reentry
radio wave propagation in the ionosphere
radio wave propagation in tropospheric radio duct
radio wave propagation via the sporadic E layer
radio wave scattering of the solar corona
radio waves propagation mechanism
radio window
radio wind radar
radish
radish seed
radium
radium-223
radium[223Ra]dichloride
radium-226
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