界線層型boundary: n. 邊界,疆界,限界 (between);(球場)邊線 ...mutual-boundary stratotype: 共界層型stratotype: 層型areal stratotype: 區(qū)域?qū)有?/li>component stratotype: 組分層型下載手機詞典可隨時隨地查詞查翻譯