precomminution(预粉碎), 此释义来源于网络辞典。
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The roof of a limestone precomminution storage of the Changchun Shuangyang Cement Mill has been completed currently as the largest span vault root steel structure in our country.
长春市双阳水泥厂石灰石预均化库屋盖是目前国内跨度最大的穹盖钢结构。
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