polar trough मीनिंग इन हिंदी

उदाहरण वाक्य

1. By January 17, the system had developed enough organized polar trough.
2. The system accelerated to the southeast and was absorbed by a polar trough on January 28.
3. An tropical wave, the 22nd of the 1962 season, forming on May 26 met a polar trough northeast of the island of Koror.