top of bed岩层: rock formation; stratum; roc ...顶板: roof; top tray岩层顶: rock head地层顶板: top of formation含水层顶板: aquifer roof下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:岩层顶板，即可在微信中查询翻译
