镜面遗留指纹提取方法 Forensic Science and Technology
非北美洲入境者还必须拍照并留指纹。
Non-Americans entering the country are photographed and fingerprinted.
每个人都需要面签、需要留指纹的要求和签证费用不变。
Individual in person interviews, fingerprints, and visa fee payments are still required.
为了查看在金属上留指纹后的效果，该样品将在包装前进行处理。
The samples will be handled prior to packaging to see the effects of having fingerprints on the metal.
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