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The reason of gas-hole defects occured in steel casting for molding eroduction line was analyzed.

的生产实践,分析了湿型砂水平造型生产线上铸钢件产生气孔的原,介绍了预防铸钢件气孔的措施。

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The measuring method of sand compactability in laboratory is analyzed,and a fast measuring method is designed,and the intelligent instrument for fast measuring sand compactability are developed.

分析了铸造行业型砂紧实率现有测法,提出了机电一体化的型砂紧实率快速智能测法,并据此研制成功了便携式型砂紧实率快速智能测仪。

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be cast up on, be cautious of, be central to, be certain of, be characteristic of, be charitable to, be civil to, be clear about, be closely bound up with, be combined with,

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3G, 401(K), a,

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