A numerical computation test shows the possibility of inferring the principal axes of tectonic stress from the p, b, t axis of earthquakes with randomly oriented fault planes.

通过数值试验论证了利用多个断层面随机取向的地震的P、B、t轴推断构造应力主轴方向的可能性。

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Boeing and its suppliers don "t get the bulk of their payments until planes are delivered."

波音和其供货商在飞机交付之前是不会得到支付的。

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Although there have been several crashes in recent months of chartered or corporate-owned small jets, such planes aren "t especially dangerous, aviation experts said."

最近几个月，美国发生了好几起包机和小型商用飞机坠毁的事故。

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We didn't have planes when I was younger and I have always wondered what it was like.

BBC: Old and bold

An airline spokesman said "we don't want our planes sitting in othter countries" if the pilots walk off the job.

CNN: Pilots reject latest American Airlines offer

But when weather gets foul, controllers won't be ordering planes to widen to 8 kilometers or more as they commonly insist on now.

FORBES: Free flight