• 参考文献

    Vanderbilt; Hass Industrial and Engineering Chemistry, 1940 , vol. 32, p. 35 Full Text Show Details Purdue Research Found. Patent: US2139120 , 1937 ; Full Text Show Details Purdue Research Found. Patent: US2132330 , 1937 ; Full Text Show Details Purdue Research Found. Patent: US2135444 , 1937 ;

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