boundary formation
短語詞組
- elliptical boundary formation 橢圓形地層
- circular boundary formation 圓形地層
- boundary -layer formation 邊界層的形成
- formation boundary 地層邊界
- Doushantuo formation Dengying formation boundary 陡山沱組燈影組界線
- formation dividing boundary line 地層界線 返回 boundary formation