Point Surface Sub-Object 点曲面子对象
point surface object
点面对象
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The laser would only singe the surface of an object in space, but that tiny burn could still help point it downward, Dr. Campbell says.
WSJ: A Cosmic Question: How to Get Rid Of All That Orbiting Space Junk?
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