皇马以一纸为期6年的合同从AC米兰签下了巴西中场组织核心卡卡。
Real Madrid have completed the signing of Brazilian playmaker Kaka from AC Milan on a six-year deal.
研究了瓦楞纸成型机的核心部件——瓦楞辊的设计与制造技术。
Design and manufacture technology of the corrugated roller, which is one of key parts of the corrugated paper forming machine, were researched.
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