| A | B |
|---|
| aperture | A hole, gap, slit, or other opening. |
| apparatus | Tools or other equipment that is put to a specific use; a group of parts used together for a particular job or function. |
| centrifuge | A rapidly spinning machine used to separate two substances that have diffferent weights and densities. |
| component | Any of the parts that together make up a whole. |
| gauge | A tool used to measure pressure, temperature, water level, thickness, speed, and so forth. To measure precisely. To evaluate or judge. |
| generator | A machine that changes mechanical energy into electrical energy. |
| laser | An electronic devise that sends out an intense beam of energy in the form of light waves.Lasers are used to perform delicate surgery, to weld or cut metals, and to carry television, radio and telephone messages |
| mechanism | The arangement of connected parts in a mechine. A mechine. |
| prism | A piece of transpernt materil that bends light and separates it into the colors of the rainbow. An object made of cut glass. |
| treadmill | A machine consisting of a wheel or a revolving belt on which a person or animal walks. |
