由于现有模块化理论大多针对有形的实体产品，但服务产品具有无形性，要研究服务产品的模块化必须深入到其生产运作过程。

Usually, the modular theory is used to study the tangible physical products, we need to innovate it for the China rail restructuring.

youdao

由于现有模块化理论大多针对有形的实体产品，但服务产品具有无形性，要研究服务产品的模块化必须深入到其生产运作过程。

Usually, the modular theory is used to study the tangible physical products, we need to innovate it for the China rail restructuring.

youdao