It all comes down to how fast a machine can perform an operation.

归结起来就是一个机器完成一个操作能有多快。

youdao

So, you'll need to perform an operation that creates a new file or fails — and does nothing else.

所以，您需要执行一个或者创建一个新文件或者失败的操作——不做其他任何事情。

youdao

Filters take standard input and perform an operation upon it and send the results to standard output.

过滤器从标准输入处获得处理内容，然后操作得到的内容，将处理后的结果送到标准输出。

youdao

It heard Dr Abdullah had told the hospital's consultant that she was competent to perform the appendix operation but initially had not realised she had taken out an ovary by mistake.

BBC: No warning for surgeon who removed ovary not appendix