常見例句雙語例句Twisting arises in boards through the presence of spiral or interlocking grain.翹曲多發(fā)生在螺鏇或交錯紋理的板材中。權(quán)威例句Wavy, ribbon and curly grain are byproducts of spiral grain that reverses itself periodically as a tree grows to produce a thing called interlocked grain.NPR: Excerpt: 'A Splintered History Of Wood' 返回 spiral grain