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Mortar Spraying Machine are things created by humans to make work easier. This is the artificial effect of the tool or invention at play here. The machine has mechanical advantages. Some machines have many moving parts. Like bikes and watches. Some machines have no moving parts. For example computers and phones. People use machines because there is no history. Usually a machine converts one form of energy into another. Simple machines will increase or change the direction of the force. The machine can reduce labor and simplify the work. It also reduces labor and increases work efficiency. This also makes the job more accurate.
Mortar Spraying Machine
This is a simple definition. The description of the machine in the book is as follows: A machine is a tool with one or more parts that uses energy to perform expected actions.