Prior service pension cost 养老金前期服务成本
The invention can solve the problem in prior technology that the cost is high for using mobile communication to provided value-added service.
本发明能够解决现有技术中 使用移动通信提供增值服务成本较高的问题。
Compared with the prior art, the system has the advantages of simple structure, small volume, low cost, long service life and high light energy use ratio.
与现有技术相比，本发明具有结构简单、体积小，成本低，使用寿命长、光能量利用率高的优点。
Compared with the prior art, the decorating element has the advantages of simpler structural manufacturing technique, lower production cost, and quite convenient after-sales service and replacement.
与现有技术相比，本结构的制造工艺更加简单，生产成本更为低廉，售后维护和更换也十分方便。
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