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The word comes from Mechine and mechanical Latin from the Greek MachinaThe word comes from Mechine and mechanical Latin from the Greek MachinaThe word comes from Mechine and mechanical Latin from the Greek MachinaThe word comes from Mechine and mechanical

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The word comes from Mechine and mechanical Latin from the Greek Machina, the earliest "machinery" is defined as the ancient Rome architect Vitrurius (Vitruvii) in his book "ten books on Architecture", mainly for carrying heavy loads of the effect of machinery and tools made a difference: "machinery (machane) and tools (Organon) seems to have the following differences. That machinery is based on most of the artificial and the great power and the effect happened, such as heavy ballista and grape crusher. While the tool is an operator careful treatment to achieve the purpose, such as spiral device scorpion light ballista or unequal round. So the tools and machinery are indispensable things by. Ancient Greece has cylindrical gears. Alexanliya Ciro (Heron of Alexandria) originated in first Century to discuss the basic elements of mechanical, he thinks that the machinery of the elements are of five kinds: the wheel and the shaft, lever, pulley, wedge, spiral. Hiro's discourse reflects the characteristics of the classical mechanical. In ancient China applied in the censer can remain the horizontal position of the rotating frame and other parts.

Machinery British scientist Willis (R.Willis) in the principle of "mechanism" (The Principle of Mechanism, 1841) is defined to: "any mechanical (machine) are a group of member are connected by different ways with various composition, make it a component of motion, the remaining component will have a certain movement the nature of these components, components and the relative motion between the initial movement depends on the connection between them." German machinery scientist Lelo (F.Reuleaux) in its "kinematics" (Theoretische Kinematik, Grundz Ge einer Theorie des Maschienenwesens, in 1875) is defined as "the machinery is multiple object with resistance in combination, the allocation that can help them forced mechanical force acting in nature, accompanied by the motion determination certain."

Generally speaking, machinery is to help people reduce the difficulty of the work or labor tool device, like chopsticks, broom and tweezers items can be referred to as machinery, they are simple machines. The complex machine is composed of two or more than two kinds of simple machines. These are usually more complex machinery is called machine