Many manufacturing enterprises, especially the middle and small enterprise, still design and manufacture the oil-feed unit by 2D design.
国内许多船舶制造企业，特别是中、小型企业对船舶供油单元的设计、制造仍处于二维设计水平。
Many manufacturing enterprises, especially the middle and small enterprise, still design and manufacture the oil-feed unit by 2D design.
国内许多船舶制造企业，特别是中、小型企业对船舶供油单元的设计、制造仍处于二维设计水平。
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