additional services短语⁴⁴⁹⁷⁰ 基本例句 追加供给 Work on the AIT IV contract will be conducted at Northrop Grumman's AIT Center in Williamsburg, Va., with additional services conducted at government facilities worldwide. AIT IV合同工作将在诺斯罗普·格鲁曼公司位于弗吉尼亚州威廉斯堡的自动识别中心进行。 www.etiri.com.cn