他的面容坚定,显示出来的威力和韧性不减当初.His face was sternly set with all its old force and strength.在这些环境下平面应变断裂韧性所采用的 符号 是这个.The accepted designation for the plane - strain fracture toughness under these environments is this.胶原和弹性蛋白使象皮肤...

“韧性”的英语可以翻译为：tenacity，[力] toughness，ductility，ductibility ...

“韧性”的拼音为：rèn xìng...