They have no identifying features or hints of a nervous system.

它们没有可供识别的特性，也没有任何神经系统。

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The study of language typology aims at identifying features that are common to all or most of languages through cross-linguistic comparison.

语言类型学研究的目的是通过语言之间的比较，寻找人类语言的普遍联系和共同特征。

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Verneuil synthetic corundum is by far the most common in the market. Thus it is vital that gemologists are familiar with the key identifying features - curved growth lines and gas bubbles.

维尔纳叶法合成刚玉是目前市场上最常见的，因此，弧形生长纹和气泡是宝石学家进行鉴定时重要而有力的关键依据。

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Pooled together and scrubbed of its identifying features like names and phone numbers, Tancer says the logs show more than just how people use the Internet.

FORBES: Magazine Article

We further winnowed down the number of choices to the 10 models on our Safest Small Cars list by identifying the models that offer the most safety features to both help protect their occupants in a crash and help their drivers steer clear of collisions in the first place.

FORBES: The Safest Small Cars

They are identifying genes that become mutated and cause the skull and facial features to become distorted.

CNN: Face transplant patient regains self-confidence