In this way, mapping of placement groups (and replicas) to storage devices does not rely on any metadata but instead on a pseudo-random mapping function.

这样一来，放置组(以及副本)到存储设备的映射就不用依赖任何元数据，而是依赖一个伪随机的映射函数。

youdao

To encrypt a byte, we xor this pseudo-random byte with the byte we want to encrypt.

对一个字节进行加密，我们对伪随机字节和要加密的字节进行异或运算。

youdao

Each data packet is transmitted on a different frequency channel, following a pseudo-random hopping sequence determined by the device address of the master device.

在一个由主设备的设备地址决定的伪随机跳频序列的指引下，每一个数据包都经由不同的频率信道来传输。

youdao

The secure communication link is a virtual private network communication link over the computer network in which one or more data values that vary according to a pseudo-random sequence are inserted into each data packet.

FORBES: VirnetX Files Infringement Case Vs. Apple With ITC