Short-distance Beam(近光), 此释义来源于网络辞典。
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A laser beam like the one pictured up top combines short and long pulses of light to identify individual molecules with a high degree of precision from a safe distance.
一道激光射线由或短或长的光脉冲组合而成,从而能在一个安全的距离高精度地辨别单个的分子。
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