与"man-made crossing"相近的词条

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• man-machint interface
• man-mad
• man-made
• man-made antibody
• man made attachment apparatus
• man-made crossing
• man-made ecosystem
• man-made fiber
• man-made forest
• man-made functional eye
• man-made isotope
• man-made machine
• man-made mineral fiber
• man-made noise
• man-made pollutant
• man-made radiation

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