| English | Estonian |
| electric line Wires conducting electric power from one location to another; also known as electric power line | elektriliin |
| line source Line source means a one-dimensional source. An example of a line source is the particular emissions from a dirt road | joonsaasteallikas |
| overhead power line Suspended cables by which electrical power is distributed throughout a country | õhuliin |
| progress line A diagrammatic presentation of observed data in the sequence of their occurrence in time, in the context of water flow | ajakõver |
