3R may refer to:
An optical communications repeater is used in a fiber-optic communications system to regenerate an optical signal by converting it to an electrical signal, processing that electrical signal and then retransmitting an optical signal. Such repeaters are used to extend the reach of optical communications links by overcoming loss due to attenuation of the optical fibre and distortion of the optical signal. Such repeaters are known as optical-electrical-optical (OEO) due to the conversion of the signal. Repeaters are also called regenerators for the same reason.
Optical regenerations are classified into 3 categories by the 3 R's scheme.
An alternative method of regeneration is through all-optical regenerators without the additional requirement to convert back and forth between optical and electronical signals. Using Non-linear optical fibers allow designers to use nonlinear effects of frequency shifting and frequency generation effects for regeneration. The key advantage of all-optical regeneration is power efficiency provided by the device, and simpler integration into an optical network.
Standard photographic print sizes are used in photographic printing. Cut sheets of paper meant for printing photographs are commonly sold in these sizes.
They are often denoted with a code of the format nR, where the number n represents the length of the shorter edge in inches. In the normal series, the long edge is the length of the short edge plus 2 inches (10" or less) or 3 inches (11" and above). The alternative Super series, denoted SnR, has an aspect ratio of 3:2 (or as close as possible) and thus provides a better fit for standard 135 film (35mm) at sizes of 8 inches or above.
In Japan, the same print sizes (and several additional ones) are known by different names. The Japanese L is equivalent to 3R, while 2L—twice the size—matches 5R. KG represents the size of a traditional 4"×6" (4R) Japanese postcard (hagaki). The nP or cut (切り, kiri) series are defined in reference to a full page size (全紙, zenshi) of 457×560 mm, with smaller numbers (fewer cuts) indicating larger sizes.
Dear John, I'm sorry I can't do this anymore
You're not the man I fell in love with
And I have to move on with my life, goodbye
Goodbye, goodbye, goodbye cool
You were the one who'd never leave
Beautiful eyes, you seemed so free
Touching your face I felt complete
Holding your hand my heart would weep
So everything that came out of your mouth was full of lies
You looked me right dead in the eyes
You'd call your girlfriends and tell them that I abused your trust
You did your best to demonize
You were the one who'd never leave
Beautiful eyes, you seemed so free
Touching your face I felt complete
Holding your hand my heart would weep
You were the one who raped my soul
Beautiful lies, you stole my hope
Touching your ass, I scratch the skin
Holding your neck, I tie the rope
(Pulling it tight)
You were the one who'd never leave
Beautiful eyes, you seemed so free
Touching your face I felt complete
Holding your hand my heart would weep
You were the one, the one for me
Now that you're gone it's hard to see
So much of me has gone away
There's no need to stay another day
But someone's got to pay
But someone's got to pay
But someone's got to pay
But someone's got to pay
But someone's got to pay
But someone's got to pay
But someone's got to pay