oil shale वाक्य

उदाहरण वाक्य

1. Between the World Wars oil shale projects were begun in several countries.
2. From 1938, the town became the centre of an oil shale industry.
3. The oil shale industry was established in China already in the 1920s.
4. During World War II the value of the Estonian oil shale deposit grew.
5. The all existing oil shale industry was merged into that subsidiary.
6. Oil shale has also been burnt directly as a low-grade fuel.
7. The village originated in the oil shale mining boom of the 19th century.
8. Instead domestic oil shales were heated to produce the needed petrol.
9. There are other sources of oil, such as tar sands and oil shale.
10. Examples include extra heavy oil, oil sand, and oil shale deposits.