For example, you can protect three devices with RAID-Z (RAID-Z 1); with four devices, you can use RAID-Z 2 (double parity, similar to RAID6).

例如，您可以通过RAID - Z (RAID - Z 1)来保护三个设备；对于四个设备，您可以使用RAID - Z 2(双重奇偶校验，类似于RAID6)。

youdao

Is there anything that could protect us from the dangers of stagnation or a double dip?

那么有什么方法能够保护我们免受停滞或二次探底的危险吗？

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Mammalian cells make only the single-stranded variety. If a cell’s defence mechanisms detect double-stranded RNA they destroy it, to protect against infection.

哺乳动物细胞只能识别单链RNA,如果细胞的防御机制发现了双链RNA就会破坏它以保护机体不受病毒的感染。

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Circuit boards are double-insulated to protect against power surges, and there are backup power supplies that can be switched out on the fly.

FORBES: Technology

There are various ways to protect yourself from double taxation, particularly by using IRAs and 401(k)s.

FORBES: The Perverse Impact Of Double Taxation: A Helpful Flow Chart

The M5M also features Plextor's True Protect unique enterprise-grade double-data protection technology.

ENGADGET: Plextor trots out M5M series mSATA drives at CES