This is proof artificially pregnancy and natural reproduction is almost the same example.

这更是证明人工妊娠与自然生殖几乎是一样的实例。

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Goldfish breeding reproduction can be divided into two kinds natural reproduction and artificial propagation.

金鱼的繁殖，可分为两种繁殖方式，自然繁殖与人工繁殖。

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The basic characteristic of agriculture is the interrelation of natural reproduction and economic reproduction. That leads to the complexity of accounting recognition, measurement and disclosure.

农业的基本特点是动植物的自然再生产与经济再生产相互交织，正是这一特点导致了对农业活动会计确认、计量和披露的复杂性。

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It is impossible for the species to be a viable population by natural reproduction.

BBC: Earth News - Giant fish 'verges on extinction'

"Our TSX and MCR systems combine the great natural sound reproduction for which Yamaha is known, with the latest lifestyle integration features today's consumers expect, " said Tom Sumner, senior vice president, Yamaha Corporation of America.

ENGADGET: Yamaha intros mini audio systems with iOS remote control, explosion of colors

Dr Wood said the same pattern had historically been seen in natural human reproduction, but it was less obvious now because people had more control over deciding when they tried for a baby, and could use contraception to prevent conception.

BBC: NEWS | Health | IVF 'works better in the summer'