In a negative copy the tonal values are reversed.

在负片拷贝中，色调值是反转的。

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You can copy and paste the expression from the ASC column, and only have to replace the values in the conditions from positive to negative.

可以复制并粘贴升序列中的表达式，然后只需把条件中的值由正数改为负数。

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EGFR gene copy number alteration and mutation are highly variable and scientists have been challenged to define their prognostic significance in triple-negative breast cancer.

EGFR基因拷贝数的改变和突变有很大的差异，科学家试图定义其在三阴性乳腺癌中的预后意义。

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Applying an electric charge to the liquid crystals causes the molecules they are made up of to realign themselves, altering the transparency of that layer. (The screens of portable computers work in a similar way.) The result is that a high-resolution negative copy of the moving image is formed in the liquid-crystal layer.

ECONOMIST: Curtains for celluloid

When all the finishing touches are complete, the master copy of the movie will reside not as a film negative but as a computer file, several terabytes in size (exactly how many terabytes, no one yet knows).

FORBES: Attack Of The Digital Movie