双语新闻：波音“梦幻客机”又现电池问题 More Battery Problems for Boeing's Dreamliner Jet

又一架波音787客机因电池问题而停飞。一年前，一个类似的问题导致世界各地的波音787客机停飞数月。
日本航空公司说，一名技师星期二在东京成田国际机场对一架“梦幻客机”进行例行维修时，发现驾驶室底下冒出白烟。
经过调查发现，这架波音787的八个锂电池中的一个发生泄漏。调查报告说，一个用来释放过多压力的安全阀运作正常，没有起火。
日航用另一架“梦幻客机”换下这架客机，并表示在进行例行维修检查后，日航的其他波音787将照常飞行。
去年，一架停放的波音787客机因电池问题起火，导致另一架飞机紧急迫降，随后世界各地的50架波音787停飞三个多月。

Battery problems have prompted the grounding of another Boeing 787, a year after a similar issue led to a months-long global suspension of the jet's flights.

Japan Airlines says a mechanic Tuesday saw white smoke rising from beneath the cockpit of a parked Dreamliner during routine maintenance at Tokyo's Narita International Airport.

An investigation found one of the eight cells of the plane's troubled lithium-ion battery had leaked. It said a safety valve meant to release excess pressure had worked properly and it did not catch fire.

JAL replaced the plane with another Dreamliner jet, and said it will keep flying its other 787s following routine maintenance checks.

The worldwide fleet of 50 Dreamliners was grounded for more than three months last year after battery problems sparked a fire in a parked plane and forced the emergency landing of another.