Expect further clearance to your cruising level 3 minutes after KC.

飞越KC三分钟后将许可上升 到航线高度层。

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With a complement of 280 passengers and 15 crew, MH17 made its way over Germany, Poland and Ukraine, reaching its cruising altitude of 33,000 feet and flying straight and level, but at 1:21 p.

载有280名乘客和15名机组人员的MH17客机，正沿着航线经过德国、波兰和乌克兰，到达巡航高度33，000英尺的高空，直线平行飞行，但是在下午1时21分，雷达已经与航班失联。

youdao

New Zealand's Civil Aviation Authority warned that the ash was expected to be detected at the cruising level of aircraft but had not yet been seen below 20, 000ft.

BBC: Chile volcano: Qantas cancels Melbourne flights

In the second set Mathieu raced to a 3-0 lead with an early break before cruising to victory to bring the scores level after a further 30 minutes of play.

BBC: Mathieu claims shock win