短語詞組短語Steep critical angle Seam 急傾斜臨界角steep dip angle 陡傾角anti -scouring steep slope angle 抗沖穩(wěn)定坡度steep angle descent 大角度下降steep angle bearing 大錐角滾柱軸承;大錐角滾柱Steep angle tapered roller bearing 大錐角圓錐滾子軸承steep -dip critical angle 急斜臨界角angle too steep 角度過大high -angle steep slope zone 高角度陡坡帶 返回 steep angle