... forcedvibration强迫振动；受迫振动 force力 foldingchartpaper折叠式记录纸 ...
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folding type recording chart
... folding training seat 婴孩学坐折椅 folding type recording chart 折叠式记录纸 folding umbrella for gentlemen 男式折叠伞 ...
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... 折叠失真[显示]aliasing distortion 折叠式记录纸fan-fold paper 折叠式照相机folding camera ...
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