Then it specifies the kernel concept of MPLS, explains MPLS protocol model, transmit principle and double plane structure.

然后详细介绍了MPLS的核心概念，讲解了MPLS的协议模型、转发原理和双平面结构。

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Objective to design a new external fixator with double plane fixation ability on the basis of unilateral multifunctional external fixation apparatus.

目的在单侧多功能外固定架的基础上研制具有双平面固定作用的外固定架。

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The results show that Double Plane Transesophageal Echocardiography can be successfully performed in all cases of the aged and can overcome unclear image caused because of fat and other factors.

双平面食管超声心动图能够克服老年人由于肥胖和其它因素引起的图像不清晰而获得满意的效果。

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It can take up to 50 people to handle the turnaround of an A380 and the double-deck plane presents considerable challenges for the airport's staff.

CNN: Frankfurt Airport in numbers

It hopes to double production of the plane this year to about 10 a month.

CNN: Q&A: Dreamliner woes explained

Researchers at MIT, led by Dr Mark Drela and tasked by NASA, have come up with a double-wide design: instead of the traditional single cylindrical body, two partial cylinders are joined together with three engines at the back of the plane between the double tail.

BBC: The futurist: Will green aeroplanes take off?