The mine complex appears, on this view taken on 16 September, 2010, as an uneven patch of grey in the midst of camel-coloured hills devoid of vegetation.

从这张2010年9月份拍的照片上来看，这矿井显得错综复杂，图中那没有植被的的骆驼色山丘中间灰色的那块不平整的地就是了。

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There was a small patch of blue in the grey clouds.

乌云中透着一小块蓝天。

《柯林斯英汉双解大词典》

AIM: the transdermal absorption data of sinomenine patch was fitted by grey model GM (1, 1) and compared with other models.

目的：对青藤碱贴剂的透皮吸收数据进行灰色GM(1,1)模型拟合并与相关模型进行比较。

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Other papers have pictures of David Cameron leaving Downing Street and highlight what the Daily Mail calls a large patch of grey in his dark hair.

BBC: Eurozone debt talks dominate papers

Before a decision could be made about how to handle the three self-stickered gents, the situation was complicated by a handsome grey-haired woman at the front of the balcony rising to her feet and applying a white patch to her mouth.

BBC: The Merchant of Venice: A protest within a play