Identifying a "genetic signature" of younger skin should also provide a benchmark for testing existing skin products.

对于年轻肌肤“基因签章”的识别，同样也会为现有的各种护肤品提供测试基准。

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The sensitive, fuzzy skin is called velvet. Each caribou has a signature pattern which can grow back year after year.

敏感并长有绒毛的皮肤叫做鹿茸。每头驯鹿都有一个年复一年能长回来的特征模式。

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Christine Drea: It's exactly like a fingerprint. It's called a scent signature. So we have these in the pattern of our skin.

克里斯汀·迪亚：它是一种气味识别特性，像极了我们的指纹，只不过指纹是以皮肤的形式存在的。

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To prepare for the show, exhibit curator Paul Martineau spent several months plowing through 1, 200 boxes of prints in a cold cinder-block room at the Herb Ritts Foundation in Hollywood, looking for shots with the L.A.-bred photographer's signature style: glowing California light, bold shadows, bare skin and film-noir settings.

WSJ: Herb Ritts at the Getty: Capturing the Soul of Fashion