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Китайцы заморозили дно озера жидким азотом, для строительства подводного тоннеля Тайху!

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how do work 2 way & 3 way valve।in chiller ahu system ⁉️ 2 वे ओर 3 वे वाल्व कैसे काम करता है

how to recovery refrigerent in HVAC chiller plant 🧫🌡️ चिल्लर प्लांट से गैस कैसे निकालते है ।

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how to do troubleshooting in chiller plant 🤔 ❓chiller plant ki troubleshooting kaise kare hindi me 🤗

what work condenser pump in Chiller plant 🤔🤔🤔 condenser pump kaise kaam karta hai .kaha lgta hai

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[#128] Алиса, Siri, откройте ворота! Установка забора и автоматизация ворот