hard stratum

基本解释硬土层

网络释义

1)hard stratum,硬土层2)hard soil layer,坚硬土层3)penetratinghardpan,穿透硬土层4)the 1st stiff clay layer,第一硬土层5)brownish-yellow and grey-green bind,褐黄色硬壳层和暗绿色硬土层6)stiff clay,硬土

用法和例句

A few stiff clay layer in the shallow of Shanghai municipality;

上海市浅部数层硬土的沉积环境、时代及划分对比

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