不断下降的回收纤维质量以及对更轻包装材料的需求超出了传统方法获得机械性能的极限。
The ever-decreasing quality of recycled fibres and the demand for lighter packing material stretches to the limit classical methods of obtaining mechanical properties.
二次纤维质量的持续降低和轻质包装材质的需求都不断地挑战传统获取机械性能的方法的极限标准。
The ever decreasing quality of recycled fibres and the demand for lighter packing material stretches to the limit classical methods of obtaining mechanical properties.
众所周知金刚石是一种在机械、热学、光学、化学、电子学等方面具有极限性能的特殊材料。
Diamond is one kind of limited functional material in the region of mechanics, thermology, optics, chemic and electronics.
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