| A | B |
|---|
| application | putting something to use |
| artery | a main road; a tube that carries blood from the heart to other parts of the body |
| consume | to use up; eat or drink |
| contend | to compete; clash |
| corrosion | a wearing away by the action of chemicals |
| diameter | a straight line passing through the center of a circle from one side to the other |
| domestic | of one's home country; of the home or housekeeping |
| economical | thrifty |
| efficiently | producing a desired effect with the least effort or waste |
| existence | being |
| injection | an introduction of a missing quality; the forcing or driving of something |
| innovation | something newly introduced |
| isolate | to set apart from others |
| obstacle | anything that gets in the way or hinders; a barrier |
| procedure | the order of steps to be followed; process; course |
| refinery | plant or establishment where raw material is made fine |
| system | network; method; scheme |
| technological | of technology; resulting from the progress of machinery |
| terminal | a depot; a device through which a user communicates with a computer |
| volume | a quantity; bulk; mass |
