A nonce is a non-repeating string freshly generated by the sender (the signer) such that the intended recipient can check its uniqueness.

现时标志是一个由发送方(签名者)新生成的无重复字符串，这样目标接收方就能检查其唯一性了。

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The second argument strictly matches a non-alphanumeric string followed by a space followed by an integer followed by another space and finally a real number.

第二个参数严格匹配一个非字母和数字组成的字符串，该字符串后面依次为空格、整数、另一个空格，最后是一个实数。

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Concatenation is the process to sequentially join multiple pieces of data, usually literal strings with non-string-literal data (most commonly, variables or other literals).

连接操作是一个顺序的连接多个数据片段的过程，通常是连接字符串和非字符串数据(绝大多数是变量或其它字符)。

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Out the door have gone a motorcycle factory and brewery in Shanghai, a stake in Chinese satellite operator Apstar, and a string of other non-core ventures in an effort to pay down debt.

CNN: CP'S CORE CONCERNS

It has taken a non-controlling stake in a string of businesses in recent years, from a garden centre to an online streaming service.

BBC: Tesco effect: How big firms quietly own little brands