注册码 meaning in Chinese

poll code
registration code

If you have any questions , please send an email to
，你就可以得到免费的升级注册码。
How do custmoers get the resisteration codes after purchase
用户购买后，如何得到注册码？
You can get the registration code after registration successfully
成功注册登记后会取得注册码
You may install one copy of the software on only one device
适用于这机器的注册码只会提供一次。
Get a free registration code of always right
获取免费注册码

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