如果银行愿意，它可以在其发行的每张钞票上印制这样的匹配序列码。

Should a bank want to, it would be able to match every note it issued with the serial number printed on it.

youdao

看看它的工作原理：在市面上流通的每张美元钞票上，都有一个10位或11位的唯一的序列码。

Here's how it works. On every U.S. dollar bill in circulation is a 10- or 11-digit serial code that is unique to that bill.

youdao

直接系列扩频通信系统的频谱扩展是借助于扩频函数而实现的，典型的扩频函数就是伪随机序列码。

Spectra expanding of Spread spectrum communication system makes use of the spread spectrum function to realize, the typical spread spectrum function is pseudo random sequence code.

youdao