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随便看	tensile strength of wax tensile strength of wire tensile strength of wood tensile strength parallel to grain tensile strength perpendicular to grain tensile strength retained tensile strength retention tensile strengths tensile strengthtenacity tensile strength test tensile strength tester tensile-strength tester tensile strength testing tensile strength testing machine tensile strength tetained tensile strength; tractive force tensile stress tensile-stress tensile stress concentrated area tensile stressed skin tensile-stressed skin tensile stress field tensile stressing tensile stress in pile tensile stress intensity of breaking