passive air defence वाक्य

उदाहरण वाक्य

1. From 1 April 1935 it was this department that was direct the British response to passive air defence.
2. Tregantle was vacated after World War I until 1938, when it was used as the Territorial Army Passive Air Defence School.
3. Together with ideas around the building of air raid shelters, evacuations of people and blackout requirements these were all termed under'passive air defence '.