The force-bearing state of powered parachute is analyzed in this paper, and much calculation about the strength and stability of major force - bearing component is done.

本文分析动力伞结构的受力状态，并对主要承力构件进行了强度及稳定性计算。

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This powered parachute costs just $35 an hour to fly, compared to hundreds of dollars for a helicopter.

VOA: standard.2010.01.01

The powered parachute can fly very low to the ground, and as slowly as giving officers a clear view during search and surveillance operations.

VOA: standard.2010.01.01

Police officers say the powered parachute does have limitations.

VOA: standard.2010.01.01

Rip-stop nylon needed to be invented before I could fly a powered-parachute ultralight aircraft.

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To transport the one-ton rover and position it near the mound, engineers devised a complicated system that includes a 52-foot (16-metre) diameter supersonic parachute, a rocket-powered aerial platform and a so-called "sky crane" designed to lower the rover on a tether to the ground.

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