key trench वाक्य

उदाहरण वाक्य

1. The two largest, near-vertical fissures trend generally east-west and extend more than below the bottom of the key trench.
2. In 1973, when the dam was only half-built, but almost $ 5 million had already been spent on the project, large open fissures were encountered during excavation of the key trench near the right end of the dam, about from the canyon wall.