General Studies · Refrigeration and Air Conditioning
निम्नलिखित में से कौन सा पद एक प्राकृतिक रेफ्रिजरेंट (अमोनिया) को दर्शाता है?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1R-134a
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- 4R-717✓
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R-717
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