Переведите текст:PLOW, ITS STRUCTURE AND OPERATION 
The plow is used in seedbed preparation. It breaks and loosens the soil, covers trash or manure. Plow refers to the primary tillage equipment. 
There are different types of plow, such as moldboard, disk, chisel, rotary, subsoil plows. 
The main parts of the plow are the plow bottom, the share, the mold-board, the landside, the frog and the beam. 
The bottom actually breaks the soil. The bottom consists of the share, the landside and the moldboard, which lift, turn and invert the soil These three parts are bolted to the frog. 
The moldboard is just back of the share. It turns the furrow slice. The moldboard is the most important part of the plow. It is upon the mold-board that the furrow slice is broken and pulverized. 
The share of a moldboard plow has the cutting edge and gunnel. The landside slides along the face of the furrow wall. It helps to counteract the side pressure caused by furrow slice on the moldboard. It helps to steady the plow during its operation. 
There are trailing and mounted plows. The mounted plows are be¬coming more popular.