Combining grey system theory with the feature of series data, a grey interpolation approach based on forward and back grey prediction model is proposed.

根据灰色系统理论和序列数据的特性，提出一种灰插值方法。

youdao

Further back the old grey rocks rose high and sheer.

再往后，古老的灰色岩石高耸而陡峭。

youdao

Satisfied, the kite returns to its perch and shows off the black epaulettes on its grey back.

白尾鸢满足的回到栖息处炫耀着它那灰色后背上黑色的肩膀。

youdao

There is also a grey area here, let me say going back to what you were saying earlier.

这里还存在着一个灰色地带，我现在来说你刚才所说的话题。

普林斯顿公开课 - 人性课程节选

And it all comes back to Grey Matter.

FORBES: Move up http://i.forbesimg.com t Move down

Satisfied, the kite returns to its perch and shows off the black epaulettes on its grey back.

ECONOMIST: The benefits of global warming

In the case of John XXIII, the smoke went from black to white to a sort of grey color and back to white again, Ridley recalled.

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