It is the six pieces of plastic cushion which are laid under the working beam.
A complex machine consists of two or more than two simple machines. These more complex machines are usually called machines. From the point of view of the structure and motion mechanism and machine, there is no difference between general machinery.Machinery, derived from the Greek Mechine and Latin Machina, originally referred to as "ingenious design", as a general mechanical concept, can be traced back to the ancient Rome period, mainly in order to distinguish between hand tools.
Plexiglass plates, acrylics, etcMechanical (machinery) refers to the general name of machines and institutions. Machinery is a tool that helps people to reduce their work difficulty or effort. Things like chopsticks, brooms and tweezers can all be called machines. They are simple machines.
The word "mechanical" in modern Chinese is the generic term for "Mechanism" and "machine" (Machine). Mechanical features are: machinery is a combination of artificial physical components. A definite relative motion between the parts of a machine. So the machine can convert mechanical energy or perform useful mechanical power, is the modern mechanical principle in the basic concept, the modern concept of multi-source Chinese mechanical word from the Japanese "machinery", Japan's machinery products do the following definition of mechanical concept (that is consistent with the following three features called Machine).
