surface crack的用法和樣例：
例句
- No stress measurements or crack surface samples were available for examination, only the surface crack configuration.
沒(méi)有應力測量或裂紋表面取樣可用于檢驗，只能依據表面裂紋圖形。 - The decarbonizing layer and crack on the surface of peeled bright bars are removed effectively.
剝皮銀亮鋼被有效地除去了表面脫碳層和表面裂紋。
