求翻译：相对来说，消失模铸造对于生产单件或小批量的汽车覆盖件，机床床身等大型模具较之传统砂型有很大优势，它不但省去了昂贵的木型费用，而且便于操作，缩短了生产周期，提高了生产效率，具有尺寸精度高，加工余量小，表面质量好等优势。是什么意思？

In contrast, the EPC for a single piece or small batch production of automobile parts, machine tools and other large bed than the traditional sand mold has a great advantage, it not only eliminates the cost of expensive wood type, and easy to operate, reducing the production cycle, improve productio

Relatively speaking, Lost foam casting for a production single-piece or small quantities of automobile covering, machine tools, such as bed large mold than the traditional sand-type has a great advantage, it not only saves expensive wood-type expenses, and easy to operate, and shorten the production

On the other hand, vanishes the mold casting regarding the production single unit or the small batch automobile cover, the engine bed lathe bed and so on the large-scale mold has the very big superiority compared with the traditional sand mold, not only it has omitted the expensive pattern expense,

In contrast, lost foam casting for producing single or small quantities of automotive panels, machine tool bed and other large mold than traditional sand has a great advantage, it not only eliminates the high costs of wood type, and easy to operate, shorten production cycles, increase production eff

In contrast, the EPC for a single piece or small batch production of automobile parts, machine tools and other large bed than the traditional sand mold has a great advantage, it not only eliminates the cost of expensive wood type, and easy to operate, reducing the production cycle, improve productio