crack pattern的用法和樣例：
例句
- To improve the visibility of the crack patterns, the structural members were often coated with whitewash.
人們常常把結構構件刷成白色，以提高裂紋圖形的能見度。 - 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。
