As such, most opened files from the application start at FD 3.
正因为如此，大多数应用程序所打开的文件的FD都是从3开始。
This could result in unexpected behavior from the programs that opened these files.
这可能导致打开这些文件的程序产生不可预料的行为。
NR_OPEN is the maximum number of files that can be opened by process.
OPEN是一个进程可以打开的最大文件数。
NR_OPEN is the maximum number of files that can be opened by process.
OPEN是一个进程可以打开的最大文件数。
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