The ever-decreasing quality of recycled fibres and the demand for lighter packing material stretches to the limit classical methods of obtaining mechanical properties.

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。

youdao

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。

youdao

The liquid chemistry method is applied to modificate the surface of plastic packing and the properties of the modificated packing are tested.

采用液相化学法对塑料塔填料进行表面改性，并对改性后的填料作性能测试。

youdao

Three different packing symmetries give three different sets of properties, notes Dr Murray.

ECONOMIST: MONITOR