CFM补充说，发动机制造商正在制作硬件并着手组装准备第二台核心机的测试仪，按照日程将在2011年中期开始测试。
The engine manufacturer is now collecting hardware and starting the build-up and instrumentation of the second core engine, which is on schedule to begin testing in mid-2011, the company adds.
这款新的发动机是大众扩大在美国市场销量这一雄心勃勃的战略的核心。
The new engine was the centrepiece of an ambitious strategy to boost VW sales in the US market.
最近的高涵道比涡轮风扇，例如罗罗的遄达发动机，推动空气通过发动机核心周围的空气相较于通过核心气量9倍。
The latest "high bypass" turbofans, such as the Rolls-Royce Trent, push around nine times more air around the core of the engine than through it.
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