n.可延展性；延伸度；可鍛性；韌性

Two important working properties of metals are ductility and malleability. 延展性和可鍛性是金屬的兩種重要加工性能。

Metals are elements that can be defined by their properties,such as ductility,toughness,malleability,electral and heat conductivity,and thermal expansion. 金屬是根據(jù)可鍛性，剛性，可塑性，電熱導通性以及熱膨脹度等特征來定義的多種元素的復合物。

A bend test is a simple test for ductility that does not require special equipment, or a specially shaped test-piece. 彎曲試驗是測試韌性的簡單試驗，不要求特別的測試設備，或規(guī)定形狀的試樣。