зардал ballast бутлуур
зардал ballast бутлуур Холбогдох мэдээлэл. Posted . Ballast Definition & Meaning - Merriam-Webster (Entry 1 of 2) 1 : a heavy substance (such as rocks or water) placed in such a way as to improve stability and control (as of the draft of a ship or the buoyancy of a balloon or submarine) tossed several tons of ballast overboard. өндөр …