When it is done, it will pop up an EV (exposure value) dialogue.

当你按照上述步骤进行时，会弹出曝光度的对话框。

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The AE lock mode locks the exposure value for precise exposure metering.

自动曝光锁定模式能锁定精确曝光测定时的曝光值。

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If the preview AE lock button is kept pressed while shooting, it is possible to shoot repeatedly with the locked exposure value.

拍摄时，如果一直按住预景深自动曝光锁定按钮，相机就能以锁定的曝光值重复拍摄。

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It factors in the TV audience per Nielsen numbers to derive at a final media exposure value for each brand.

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Exposure to value, size and momentum factors explains the excess returns from alternative index strategies.

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Of these two strategies, I find the least expensive and most flexible solution is to create a style tilt using two separate funds, one that provides cheap beta exposure and a second that provides concentrated exposure to value stocks.

FORBES: Investing in Style with Index Funds