短语词组短语open -well stair 露明梯井楼梯open caisson well construction 沉井施工open stern well 尾部敞开井Open stas well asards 关闭法式open stair well 露明楼井long open hole well 长裸眼井open a well 打井open hole well 裸眼井open hole well test 裸眼测试 返回 open well