trench
习惯用语trench on [upon]1.■侵占[犯], 接近, 近似特殊用法cabletrench1.■电缆沟contour trench [ridge, furrow]1.■水平沟, 等高沟cross trench1.■横沟cutoff trench1.■防渗隔离槽deep-sea trench1.■【地质】深海沟discovering trench1.■试沟drainage trench1.■排水沟foundation trench1.■基坑, 基槽longitudinal trench1.■纵向泄水沟(碴床)open trench1.■明沟pilot trench1.■导沟Romanche trench1.■【地质】罗曼希海沟shelter trench1.■散兵壕step trench1.■探沟submarine trench1.■【地质】海底沟
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