limit unit的用法和样例：
例句
- To predict the forming limit in sheet metal forming, a ductile fracture criterion is introduced into the finite element simulation.
摘要为了准确地预测板料成形极限，将韧性断裂准则引入到有限元模拟中。 - Hounsfield unit alues were used to assign permeability alues as well as modulus to the finite element model before analyses.
在分析之前，我们用亨斯菲尔德单位标定了这个有限元模型的渗透参数及其绝对值。
