吕氏英汉字典[简体]:
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precast prestressed concrete beam
"precast prestressed concrete beam" Chinese translation ("precast prestressed concrete beam" in Chinese, "precast prestressed concrete beam" 中文翻译, "precast prestressed concrete beam"发音):
precast prestressed concrete beam
预制预应力混凝土梁 [预制预应力混凝土梁]
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