substrate(=substratum)底层,下层,[地]底土层,基础,本源,[生]培养基,[生化]酶作用物,[摄](胶片)感光底层
substrata substratum 的复数
参考资料:http://www.iciba.com/search?lang=utf-8&s=substrate
substrate(=substratum)底层,下层,[地]底土层,基础,本源,[生]培养基,[生化]酶作用物,[摄](胶片)感光底层
substrata substratum 的复数
参考资料:http://www.iciba.com/search?lang=utf-8&s=substrate