In addition, these solutions are often able to provide the user with and inventory control and transport systems offer and purchase module.
此外，这些解决方案通常还能为用户提供与库存控制和运输系统相连的报价和采购模块。
While the core app is free with basic lessons, you have to purchase more content in-app if you want access to every module.
虽然最基本的核心课程是免费的，但如果你想进入每个模块，你就必须得花钱购买更多的内容。
The above figure shows a module which came from the purchase of motherboard. I unscrewed the DB-9 connector from the module for use.
上图就是我在买底板时附送的模块，我把DB-9的串列埠拆下来待用。
The above figure shows a module which came from the purchase of motherboard. I unscrewed the DB-9 connector from the module for use.
上图就是我在买底板时附送的模块，我把DB-9的串列埠拆下来待用。
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