Aerobic respiration, a process that uses oxygen, and anaerobic respiration, a process that doesn't use oxygen, are two forms of cellular respiration.Although some cells may engage in just one type of respiration, most cells use both types, depending on an organism's needs.erobic respiration, a process that uses oxygen, and anaerobic respiration, a process that doesn't use oxygen, are two forms of cellular respiration.
exists and is an alternate of . conventional machining is that in which the control of removal of material is either by automatic machines or by man handled.while cnc machinig is that in which control of machining process is done by computes or through programming.
The CNC machine is used in production of precision parts or parts with intricate details, and can be used to fabricate products, from medical implants to automotive parts, with a high degree of accuracy. A CNC machinist is skilled in machining procedures, material properties and computer operations.