quaternaryadj.第四纪的；四的；四进制的n.四；四进制；第四纪quaternary signaling四元通信quaternary detergent季盐类洗涤剂quaternary cationics[化] 季盐阳离子表面活性剂; 季铵盐阳离子表面活性剂quaternary treatment四级处理Quaternary red earth第四纪红土Quaternary volcanoes第四纪火山quaternary phosphine季鏻Quaternary gas field第四系气田quaternary ionisation四级电离quaternary surfactant季盐表面活性剂