secondary arm次级臂
secondaryadj.次要的;从属的;中等教育的n.副手;次要位置
secondary armament辅助兵器,副炮
secondary charging二次充电
secondary diagonal次对角线
secondary offering证券第二次发行
secondary grouting二次灌浆
secondary filament次级丝,肌动蛋白丝
secondary laterite次生砖红壤
secondary hydroxyl仲羟基
secondary carbides二次碳化物
secondary stickies胶黏物