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Introduction  We known that in our home there is bore well to get more amount of water. The bore well means it is small pipe in which we get more amount of water compare to its size. And then we put water pump to remove water from bore well. These very short method to remove water from under ground. To remove water from underground there is on machine that is bore machine. These machine drill on earth in size of pipe that's diameter is 6 inch = 72 cm. These will drill how much we want but it depend on machine. It has specific feet to each machine means it work to specific feet when the limited is cross then machine will not work properly.                                                                     These is the bore machine.     1. These machine is on truck but these work on fuel. One truck there i...

 Introduction   Army tanks are for defense and attack. These are very powerful machines. These tanks are not like cars because these tanks are big in size tan the car. These tanks move slower than the car. Because tanks weight is much more than cars. The one tanks wight is about 68 tons means 68,000 kg. And one car wight is 1.5 tons means 1,500 kg. These one tank weight is equal to 45 cars. Now we start one by one.                                                             These is Army tank.     1.The main part of tank is called Hull. In hull there are wheal, chain, engine, lights, silencer ,etc.                                                             ...