Cutting out commutes is better for the ozone layer than having millions of people sitting in traffic jams, spewing carbon monoxide, for hours on end.
相较于让数百万人堵在路上,连续数小时不停地喷涌一氧化碳,省掉通勤显然更有利于保护我们的臭氧层。
2
A new viewpoint was advanced, in which the plastic flow of metal layer to be cut becomes the cutting burr, and it was confirmed by experimental results.