The laser mapping produces 3-d renderings that are accurate down to within three millimeters.

激光测绘的3d渲染可以精确到3毫米以内。

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The flights will be conducted by a DC-8 outfitted as a special airborne laboratory with laser mapping instruments, ice-penetrating radar and gravity instruments.

CNN: NASA flights will study Antarctic ice changes

Google's self-driving cars, which use laser sensors and mapping technology, are examples of Level 3 cars, Mr. Friedman said.

WSJ: Self-Driving Cars Spark New Guidelines

Behind the scenes Nokia appears to be undertaking a global laser-based mapping exercise designed to give it superior mapping data.

FORBES: Is The Nokia Map App Better Than Google's?