诊断工具可以帮助程序员确定何时使用那些技巧。

Diagnostic tools can help the programmer determine when to use those techniques.

youdao

尽管这个命令提供一些有价值的信息，但是除非有可信的管理员已经诊断出系统中存在某种内存问题，否则我们通常不会首先使用这个命令。

While this command provides useful information, we don't usually start with this unless a trusted administrator has already diagnosed that there is a memory issue of some kind on the system.

youdao

诊断性能越好，操作员错过一条错误信息并继续使用一个错误的密匙环的机会就越少。

The better the diagnostics, the less chance of the operator missing an error message and continuing with a broken keyring.

youdao