英汉例句双语例句Engine S/N003 will be put through initial ground checks before it is fitted under the wing of Pratt & Whitney's Boeing 747SP test bed for flight trials in the second quarter 2011.2011年二季度S/N003将完成挂载到普惠波音747SP测试平台上以进行飞行试验前的首次地面检查。