systems selling

There are six sub-systems: data center managing system, electricity providing bureau business system, business analyzing and predicting system, portable electricity selling system, voicing inquiring and charging system and touching-screen inquiring system.

该系统共包括数据中心管理系统、供电所营业系统、营业分析与预测系统、便携式售电系统、语音查询与催费系统、触摸屏查询系统六个子系统。

With 4000 Chinese businesses selling everything from machinery to security systems, plastic toys to massage chairs, the Dragon mart is hoping to become the largest trading hub abroad for Chinese products.

龙城（dragon mart）希望成为中国商品在海外最大的贸易中心，这里的4000家企业，销售着从机械到安全系统、从塑料玩具到按摩椅等各种商品。

Though shifting between operating systems isn't a new concept, Asustek's TD300 device had a selling point called Instant Switch.

尽管在不同的操作系统之间进行切换并不是一个新的概念，但华硕TD300设备拥有“快速切换”（Instant Switch）的卖点。

This week it finally stepped forward, touting two systems for selling films and television shows online.

本周,好莱坞终于向前迈出了一步,推出了两个分别针对电影和电视节目的在线销售系统.

In online transactions systems, many users take advantage of convenience in buying and selling goods.

在线上交易系统中，许多使用者利用它的方便来购买与出售物品。