这种新辊型对低塑性钢穿孔质量的改善和实现大前进角强化穿孔过程都有很大意义。

This new roll shape is very effective for improving pierced quality of low plastic steel and intensifying piercing process with larger cross angle.

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彼得则匆忙建起延伸至平原的木墙、外堡或者角面堡，并以此为前进营地。

Peter set up a forward camp with hastily constructed timber walls and outworks, or redoubts, extending into the plain.

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另外，其他一些科学家不仅在湄公河三角洲发现了一种带斑纹的野兔，而且在印尼也发现了一种色彩斑斓的鱼类，这种鱼会在海床上弹跳着前进。

Then others discovered a striped rabbit in the Mekong Delta and a gaudy Indonesian fish that swims by bouncing haphazardly off the sea bottom.

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