cold testing meaning in Hindi

Examples

1. Convair F-102A-15-CO Delta Dagger, " 53-1802 ", arrived at Eglin AFB and entered the climatic laboratory for cold testing under the auspices of the Wright Air Development Center in October 1955.
2. Alternatively, it is hard to believe that Pakistan had the engineering capability to produce plutonium for nuclear bombs in the early 70s, when it couldn't even complete the less difficult step of subcritical, cold testing until 1983 in Kirana Hills.
3. By the end of testing, drivers had road tested prototypes in everyday conditions including dry weather and dusty condition testing in Madrid, engine testing in Bayonne, cold testing at the Arctic Circle in Norway, suspension testing in Sicily, weatherseal testing in then-Yugoslavia  a total of more than two million kilometres of road and track testing.
4. Craven, who was the Chief Scientist of the Navy's Special Projects Office, which had management responsibility for the design, development, construction, operational test and evaluation and maintenance of the UGM-27 Polaris Fleet Missile System had long believed " Scorpion " was struck by her own torpedo, but revised his views during the mid-1990s when engineers testing Mark 46 batteries at Keyport, Washington, said the batteries leaked electrolyte and sometimes burned while outside their casings during lifetime shock, heat and cold testing.