extensional mechanism的用法和樣例：
例句
- The subcritical crack growth mechanism in brittle materials is studied from the viewpoint of mesomechanics.
本文從細觀力學角度研究了高脆性材料亞臨界裂紋擴展機制。 - The strong balloon swelling is dominant and tectonic extension is subordinate during the emplacement mechanism of early Jurassic alkali granite.
早侏羅世鹼性花崗岩體岩漿就位過程中以強力的氣球膨脹作用為主，構造擴展機製為輔。
