Improve Stratum meaning in Urdu

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طبقہطبقہطبقطَبقِ خُلیاتمَوَاد کا طَبَقتہہتہہ

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طبقہطبقہطبقطَبقِ خُلیاتمَوَاد کا طَبَقتہہتہہ

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