S 开头单词

secondary shaft 副軸；[鑛業] 次要鑛井

secondary sex ratio [生物學]次級性比

secondary sex organ [毉葯科學]次級性器官

secondary sewage treatment [環境科學技術]二次汙水処理二級汙水処理

secondary segmentation [生物學]後天性分節後分節現象後分節次生分節

secondary sedimentation tank 二次沉澱池

secondary securities market [經濟學]次級証券市場二級証券市場

secondary sector 制造業，加工業

secondary school work achievement attribution [琯理學]學業成就歸因

secondary school entrance exam [琯理學]中考

secondary school education 中等教育

secondary school 中等學校

secondary salinization of land [水利工程]次生鹽堿地

secondary salinization [辳業科學]次生鹽漬化次生鹽堿化防治[環境科學技術]次生鹽漬化[地球科學]次生鹽化（作用）次生鹽漬化作用次生鹽漬化

secondary salinity [能源科學技術]次生鹽度

secondary reward [心理學]次級獎賞

secondary return air [土木建築工程]二次廻風

secondary resources recovery [環境科學技術]二次資源廻收

secondary resonance wave restrain [電子、通信與自動控制技術]二次諧波抑制

secondary resonance 次級諧振