展性

zhǎn xìng gāng

展性钢

malleable steel

zhǎn xìng hé jīn

展性合金

ductile alloy

zhǎn xìng jīn shǔ

展性金属

malleable metal

zhèng shì zhǎn xìng shǐ jīn shǔ zài yā lì xia yǒng jiǔ biàn xíng ér bù duàn liè

正是展性使金属在压力下永久变形而不断裂。

It is malleability that allows metal to deform permanently under compression without rupture.