young'BNC²³⁶²¹³⁺¹ 例句 And you have Young' s modulus there for various metals, and I also have it down there for nylon, and today we will work with that quite extensively. 这里是各种金属的,杨氏模量，还有尼龙的杨氏模量，今天我们将多次,用到它。163 The speed of sound also depends on Young' s modulus. 声速也同样,取决于杨氏模量。163