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12kg

12kg

12kg

12kg

1

In theory , it takes only 12kg of water to hydrate a completely sack of cement .

从理论上说，使一袋水泥完全水化只需要 12kg 水。

2

Surgical treatment of critical congenital heart defect in infants under 12 kg

12kg 以下小儿危重先天性心脏病的外科治疗

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