地坑铸件
Pit casting
以上为机器翻译结果,长、整句建议使用 人工翻译 。
例如同样是生产大型机床床身等铸件,一般采用组芯造型法,不制作模样和砂箱,在地坑中组芯;
For example is also a large machine tools such as casting production lathe bed, generally USES the method of cores modelling, don't make shape and sand box, in the pit of cores in;
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