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1.The construction of this bridge uses permetallurgical cement as its main material.
这座桥梁的建设主要使用了冶金水泥作为主要材料。
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2. Permetallurgical cementis widely used in the production of steeland iron.
冶金水泥在钢铁和铁的生产中被广泛使用。
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3. Theengineers were discussing theadvantages and disadvantages of usingpermetallurgical cement forroad construction.
工程师们正在讨论使用冶金水泥进行道路建设的优势和劣势。