传统的方法是通过常规光线使指纹显示出来，而且要借助粉末等物质，这会改变指纹保存状况。
The conventional methods are meant to bring out fingerprint patterns with regular light and they have to treat those with powder, which alters them.
传统上，那里的小麦种植户每年都种植冬小麦，让土地休耕一季，在下一年小麦种植时应用常规耕作方法。
Wheat farmers there traditionally plant winter wheat one year, leave the field fallow for a season, and use conventional tillage before the next wheat planting.
典型的IP PBX还能交换VoIP用户与传统电话用户之间的电话，或者以常规p BX一样的方法交换两个传统电话用户之间的电话。
The typical IP PBX can also switch calls between a VoIP user and a traditional telephone user, or between two traditional telephone users in the same way that a conventional PBX does.
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