The -p switch indicates that we want to preserve the file permissions, critical for a good backup.
p开关表示我们希望保留文件许可权限，这对良好的备份来说是很关键的。
Let's decompose the Perl script (in a simplified fashion, omitting some of the complexities of the -p switch).
让我们分解perl脚本(用一种简化的方式-省略-p开关的一些复杂性)。
Thus, the -p switch is better for full processing of a file, while the -n switch is better for selective file processing, where only specific data needs to be printed.
因此，- p开关更适用于对文件进行的完全处理，而-n开关更适用于选择性文件处理，这样的处理只需打印特定数据。
Use the arrow keys (or keep hitting Win+P) to switch to “clone”, “extend” or “external only” display settings.
用箭头(或继续猛击Win+P)来切换"不投影"、"镜像屏"、"扩展屏"或"关内屏"的设置。
From the menu, you may press e on an entry to edit it, c to switch to a GRUB command line, b to boot the system, p to enter a password, and Esc to return to the menu or to the previous step.
在菜单中的条目上按e 键将编辑条目，按c 键切换到GRUB命令行，按b键引导系统，按p键输入密码，按 Esc 键返回菜单或上一步。
So now it's not just that the on-off switch is stuck in off, the brain's no longer capable of engaging in these higher order P-functions.
所以现在看来就不是开关被卡住，大脑已经不再有能力，实行这些高级的人格功能。
Last year the g. O. P. pulled off two spectacular examples of bait-and-switch campaigning.
去年，共和党在两项规模宏大的诱饵掉包法选战战例中获胜。
The -f switch again points to our file, and -p indicates that we want to restore archived permissions.
这里的-f开关同样指向归档文件，- p开关表明我们想要还原归档的权限。
Note how the -p and -n switch are used.
请注意-p 开关和-n开关的使用。
So if we go ahead and hybridize our p orbitals and our s orbitals, we'll switch from having these original orbitals to having something called hybrid orbitals.
如果我们,杂化p轨道和s轨道，我们会从原来的轨道,变成一个叫杂化轨道的东西。
By compensating with P-type bootstrapped switch, this circuit can overcome nonlinear distortion, which is generally introduced by signal-dependent on-resistance, and improve sampling resolution.
采用P型栅压自举开关补偿技术，可以有效地克服采样管导通电阻变化引入的非线性失真，提高采样精度。
E/P Positioner, P/P Positioner, Air-set, Booster relay, Air-valve, Limit switch, Solenoid valve, Lock-valve, Speed controller, Position transmitter, etc.
定位器、P/P定位器、空气过滤减压阀、气动加速器、气控阀、限位开关、电磁阀、闭锁阀、速度控制器、阀位传送器等。
E/P Positioner, P/P Positioner, Air-set, Booster relay, Air-valve, Limit switch, Solenoid valve, Lock-valve, Speed controller, Position transmitter, etc.
定位器、P/P定位器、空气过滤减压阀、气动加速器、气控阀、限位开关、电磁阀、闭锁阀、速度控制器、阀位传送器等。
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