The FLD includes alcohol-induced liver disease (ALD) and nonalcoholic fatty liver disease (NAFLD).
临床上分为酒精性肝病（ALD）和非酒精性脂肪性肝病（NAFLD）两大类。
Previous research has shown that thickness ratio, main strain and rolling direction influences the FLD of TWBs.
当前国外学者初步研究了材料厚度比、载荷形式、 轧制方向等若干因素对拼焊板成形极限的影响规律；
By combining the "thickness gradient criterion" and FEM, the FLD of sheet metal can be calculated when the tensile properties is available.
将厚度梯度准则与有限元方法相结合，可在已知薄板单拉性能参数的条件下计算获得其成形极限图。
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