... 硫酸盐；硫酸酯 sulfate 双硫酸,浓硫酸 double oil of vitriol; dovap 苯硫酸 phenol sulfuric acid; phenyl-hydrogen-sulfate; phenyl-sulfuric acid ...
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N a tracking system for determining the position and velocity of spacecraft, missiles, etc, based on the Doppler effect 测定导弹速度和位置的多普勒信标
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