Each arm would be made of a plastic film that could be rolled out onto the surface of the moon, either by robots or by astronauts.

每一个臂状结构都由塑料薄膜造成，可被机器人或航天员铺展在月球表面。

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Lap. Fold of metal which has been rolled or otherwise worked against the surface of rolled metal, but has not fused into sound metal.

折叠。经过轧制或采用其它方式加工的金属沿着轧制金属表面折叠起来，但并未被熔合成完好金属。

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It has a rolled, rigidized surface which gives it a high modulus of rupture and compressive strength as well as high abrasion and hot gas erosion resistance.

它具有滚压刚化表面，不仅断裂模数大、耐压强度高，而且具备良好的抗磨损和抗热气腐蚀能力。

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We even watched as the Mars rovers rolled around the red surface of another world.

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His first chip didn't quite make it onto the putting surface and rolled back to his feet, leading to a double bogey.

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In March, BMW rolled out a concept car with a touch-sensitive surface that allows the driver to control the heating and music systems via gestures.

FORBES: Written by Bryan Nelson