常見例句雙語例句The sublacustrine fan and talus turbidite fan, formed during the ascending period of base level, are the leading oil -accumulation trap of the area.湖底扇和坡移濁積扇圈閉形成于基準(zhǔn)面上升期,是該區(qū)主要的儲油圈閉; 返回 talus fan