To avoid outages, multiple key versions are simultaneously supported.

为了避免停机，将同时支持多个密钥版本。

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Multi DIMENSIONAL CLUSTERING (MDC) - organizing data in table (or range of a table) by multiple key values.

MULTI DIMENSIONAL CLUSTERING (MDC)——根据多个键值组织表(或一个表中的范围)中的数据。

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Because of key combinations-either in default keyboards or through input method editors-multiple key events might raise just one text input event.

由于存在键组合(使用默认键盘或输入法编辑器)，因此多个键事件可能只会引发一个文本输入事件。

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Still, demand for BlackBerry and its wildly popular BBM service is strong within multiple key markets worldwide, and the number of subscribers continues to increase.

ENGADGET: IDC: Android claims 75 percent of smartphone shipments in Q3, 136 million handsets sold

Mike Lanman, chief marketing officer of Verizon Wireless, said the company is addressing other user complaints in future releases, such as allowing users to type on a full keypad in portrait mode, rather than a keypad with multiple letters per key.

WSJ: BlackBerry Storm Is Off To Bit of a Bumpy Start

Shares in Biogen Idec dipped 2.7% not only because the Food and Drug Administration said it would take an extra three months to review its key multiple sclerosis drug, BG-12, but because an Abbott Laboratories kidney cancer medicine that in some ways works similarly to BG-12 failed.

FORBES: Biogen Says Its FDA Delay Unrelated To Abbott's Failed Medicine