Tell-tale wisps of grey smoke rise above the tree cover to point the way.

屡屡的灰烟飘荡在上空指向工厂的方向。

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What was once another one of the wild social canids, the grey wolf, has been altered radically, to the point that it has become its own unique animal.

还曾有一种群居性的野生犬科动物——灰狼，已经发生了急剧的变化并形成另一种独特的动物。

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When grey systematic theory at present set up GM (1 , 1 ), it assumes that fit curve passes the first point of modeling data to confirm the integral constant, thus obtained to forecast formula.

目前灰色系统理论在建立GM（1，1）模型时通常采用假定拟合曲线通过建模数据第一点来确定积分常数，从而得到预测公式的方法。

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Even more geriatric than the train is the wood-framed building that houses the Hastings Mill Store Museum, located across the city in the neighbourhood of Point Grey.

BBC: The best of Vancouver for free

The class at West Point Grey Academy are now looking for living members of Pte Gibson's family, and have been promised an 'A' grade if they connect the medal with its owner.

BBC: Medal

While the materials and construction methods are similar to standard pylons, one point of departure is the colour - white instead of gun-metal grey.

BBC: Could pylons ever be pretty?