Interchangeable
im pretty sure that the answer is: industrial revolution
Mechanical repair to a car.
The Aerospace Parts Store is the best place to purchase Aerospace parts and equipment for the repair or production of Aeronautical devices including planes.
Harmful molecules are continually bombarding the human body, such as free radicals, by-products of energy production. When young, the body is able to repair most cellular damage. As it ages, the repair process becomes less efficient.
Mechanical engineers can work in airlines. They work in the repair of the engine and the fuselage.
Mechanical Engineering is a discipline of engineering that applies the principles of engineering, physics and material sciences for analysis, design, manufacturing and maintenance of mechanical systems. It involves the production and usage of heat and mechanical power for the design, production and operation of machines and tools.
Advantage and disadvantage of labour saving devices
Gachapon production I think
yes repair of machinery that involve in production is part of direct cost.
that depends whats wrong with it and your mechanical skills
General maintenance and repair workers maintain and repair machines, mechanical equipment, and buildings. They work on plumbing, electrical, and air-conditioning and heating systems.
Junkyards, repair shops.. perhaps Toyota dealerships.. sometimes they'll have them on the lot or showroom with mechanical problems (which is why they offer warranties).