Results show that the crack is mainly intergranular and there is no decarburization and oxidation at the edge of the crack. 根據齒座表面裂紋主要呈沿晶擴展，裂紋兩側無脫碳和氧化現象，認為該裂紋為淬火裂紋。
No stress measurements or crack surface samples were available for examination, only the surface crack configuration. 沒有應力測量或裂紋表面取樣可用於檢驗，只能依據表面裂紋圖形。
His over-taut skin seeped and cracked whenever he exerted himself. 每當他用勁的時候，緊繃的皮膚就會開始滲血然後開裂。
Pat your skin rather than rubbing to avoid chapping and cracking. 輕拍你的肌膚，而不是揉搓，這樣可以避免皮膚皸裂或開裂。
