pipeline in Bulgarian
pipeline in Bulgarian
тръбопрово́д
A conduit made of pipes used to convey water, gas or petroleum, etc.
информацио́нен кана́л
A channel (either physical or logical) by which information is transmitted sequentially (that is, the first information in is the first information out).
тунел
(surfing) The inside of a wave that a surfer is riding, when the wave has started closing over it.