下壳层...

His re-creation of the city is credible, with a substratum of fact to bolster the fiction.他对该城历史的再现是可信的，虚构的小说情节隐念着一些事实作为支撑。The best nutrition supply was basic substratum mixed with rapeseed cake liquid.营养供给以基本基质加菜籽饼水液为佳....

n.底层，下层...

hypostratum的音标：hypostratum的英式发音音标为：[haɪpəʊst'rɑ:təm]hypostratum的美式发音音标为：[haɪpoʊst'rɑtəm]...

substratum的音标：substratum的英式发音音标为：['sʌbstrɑ:təm]substratum的美式发音音标为：['sʌbstreɪtəm]...

stratum的复数形式为：strata...

a level substratum水平的底层His recreation of the city is credible, with a substratum of fact to bolster the fiction.他对该城历史的再现是可信的，虚构的小说情节隐念着一些事实作为支撑。...its deep substratum of chalk...深厚的白垩地层The story has a substratum of trut...

An aquifer is a water - bearing rock stratum such as sandstone and chalk.地下蓄水层是一些有水的岩石层,如沙岩和白垩岩....the corruption that pervades every stratum of the country...渗透到社会各阶层的腐败An aquifer is a water-bearing rock stratum such as...

An aquifer is a water - bearing rock stratum such as sandstone and chalk.地下蓄水层是一些有水的岩石层,如沙岩和白垩岩.The coal is a coal resource that reserves in old stratum.石煤是贮藏在古老地层中的一种煤炭资源.A portion of bedrock or other stratum protruding...

substratum的复数形式为：substrata...

n.岩层，地层，社会阶层...

stratum的音标：stratum的英式发音音标为：['strɑ:təm]stratum的美式发音音标为：['streɪtəm]...