alternate key

基本解释

For example testing alternate designs for key pages to see which performs better.
例如通過測試幾個可選的關鍵頁麪設計，可以很明確的看到哪個設計表現更好。
The retrieval of a data record in an indexed file by the primary (or optionally, alternate) key within the data record .
在索引文件中，通過數據記錄中的主要關鍵字或可選關鍵字進行數據記錄的檢索的一種方法。
A container can either support strings as its keys, like the root object itself, or can use integers as an alternate key system instead.
容器可以支持將字符串作爲其鍵值，就像根對象本身一樣，或者可以使用整數作爲備選鍵值系統。

Last week, I penned a long op-ed offering an alternate plan that first establishes key solo franchises to help generate far more buzz and anticipation for a Justice League movie, as well as helping to give audience a far more thorough introduction to the characters and help make the superheroes more relatable to mainstream non-comics-reading viewers.
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Other key issues for the Illinois senator include a revamped energy policy focusing on increased efficiency and alternate technologies, and expanded health care coverage for all Americans.
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It will be of interest to readers that Wave C was exactly equal to Wave A. Once again, this fits in with the Elliott Wave theory that says alternate waves in a correction tend to be related by a Fibonacci ratio, and 100% is a key number.
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