波成阶地砂体圈闭的英文

wave-built terrace sand trap

• 波:    wave
• 成:    accomplish; succee ...
• 阶地:    terrace; catstep; ...
• 砂:    sand; grit
• 体:    body; part of the ...
• 圈:    circle; ring
• 闭:    close; shut