单词	linguistic signs
释义	linguistic signs 语言符号
随便看	Structural first passage failure structural fissure structural fissure water structural flakeboard structural flaw structural flaws structural flexibility structural floor panel structural floor unit structural flow structural fluctuation structural fluctuations structural foam structural foamed plastic structural foam molding structural foam moulding Structural foam plastic structural foam plastics structural foam resin structural focus structural folds of Schwalbe structural forging structural form structural-form structural formation