Please fix up a portable light here.

请在这里安装一盏行灯。

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It gave humans the first form of portable light and heat.

他给人类带来第一种可以发光和发热的物质。

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A portable drill or an electric chainsaw could save Labour, and make light of roughing out big boards.

便携钻机或是电动链锯能够节省体力，并使大块木板的粗加工化繁为简。

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"Some of these inventors have been designers of the human genome sequencer, incredible technologies around focusing sound in the same way have been able to focus light with lasers, health technologies like the stair-climbing wheelchair and a portable dialysis machine,".

VOA: standard.2009.12.18

If the climate or hour of the day at the new destination don't allow for lots of light, a small, portable light box, some of which double as an alarm clock, can be purchased.

WSJ: To Avoid Jet Lag This Summer, Travel Like a Scientist

Users can simply mount the entire flashlight and charger as a unit by doorways and entryways to hazardous locations, thus providing a highly convenient and fully charged portable light source whenever it is needed.

ENGADGET: Explosion-proof flashlight could be the first to outlive its owner

P3 is portable and light, yet rugged.

ENGADGET: Bowers & Wilkins kicks out P3 headphones, brings upscale sound to the commoners (update)