bearing small hollow concrete block
bearing small hollow concrete block
支座小空心混凝土砌块
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The study on small hollow fly ash concrete block has been carried out for lowering the production cost, and to meet the bearing wall body requirement.
为既降低混凝土小型空心砌块生产成本，又能满足承重墙体要求，进行了粉煤灰混凝土小型空心砌块研究。
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