After Mr Bush raised steel tariffs in 2002, half a dozen other countries followed.
继2002年布什提高了钢铁关税之后,其他国家也相继提高了这项关税。
The results showed that the segregation of Pb atoms in the interface between the alloy and the steel back was the main factor leading to the failure of the bearing bush.
结果表明, 铅原子在合金层与钢背材料结合面上的聚集是导致轴瓦失效的主要原因。
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