secondary low次生低压,副气旋,副低压secondaryadj.次要的；从属的；中等教育的n.副手；次要位置secondary ossification次生骨化Secondary eosinophilia继发性嗜酸细胞增多症secondary cell culture次代细胞培养secondary scintillator第二闪烁剂, 次级闪烁体secondary neutral grid二次中心点接地网secondary great circle次大圆secondary assimilation二次同化secondary endosymbiont次生共生细菌secondary metabolities次生代谢物secondary arc currents潜供电流