海胆类 sea urchins
海豹 seal
缝 seam
季节 season
季相 seasonal aspect
季节二态性 seasonal dimorphism
季节性动摇 seasonal fluctuation
季节型 seasonal form
季节迁移 seasonal migration
季节周期 seasonal periodicity
季节性节律 seasonal rhythm
季节性层片 seasonal synusium
海豹 seal
缝 seam
季节 season
季相 seasonal aspect
季节二态性 seasonal dimorphism
季节性动摇 seasonal fluctuation
季节型 seasonal form
季节迁移 seasonal migration
季节周期 seasonal periodicity
季节性节律 seasonal rhythm
季节性层片 seasonal synusium
季节变异 seasonal variation
季节性代替种 seasonal vicariad
刀 seasonings
海星类 seastars
海藻类 seaweeds
皮脂腺 sebaceous gland
皮脂腺 sebiferous gland
皮脂 sebum
分泌基因 sec gene
第二触角 second antenna
次级培养 second culture
第二代杂种 second filial generation
二次信使 second messenger
网胃 second stomach
第二性征 secondal sexual character
二次酌 secondary action
副轴 secondary axis
后成体腔 secondary body cavity
次生细胞 secondary cell
次级消费者 secondary consumer
次级培养 secondary culture
次生培养细胞 secondary culture cell
二次酌 secondary effect
次生免疫响应 secondary immune response
继发性感染 secondary infection
二次溶酶体 secondary lysosome
次生分生组织 secondary meristem
二次信使 secondary messenger
侧根 secondary root
次生演替系列 secondary sere