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Why monster waves can't sink large ships during heavy storms? How ship engines are actually tested and built?
বিশাল ঢেউ বড় জাহাজ ডুবাতে পারে না কেন? কিভাবে এরা বেঁচে ফেরে, জাহাজ কিভাবে তৈরি হয় এবং পরীক্ষা হয়?
#ছায়াপথ #ship #shipbuild #shiptest
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