This paper discusses the concepts of layered deposit, ash pit and interface and the way to deal with those archaeological features in digging and recording.
本文详细探讨了地层堆积、灰坑和界面等遗迹现象的概念、形成过程、方式、年代，以及相应的考古发掘清理和记录方法。
Since the system can display with image the ash and slag distribution in the ash-pit under the boiler in a real-time manner, it helps people effectively control the operation of the ash system.
该系统能实时绘图显示炉底灰坑内灰渣分布情况，使运行人员充分掌握炉底出灰系统的运行情况，取得了很好的效果。
Since the system can display with image the ash and slag distribution in the ash-pit under the boiler in a real-time manner, it helps people effectively control the operation of the ash system.
该系统能实时绘图显示炉底灰坑内灰渣分布情况，使运行人员充分掌握炉底出灰系统的运行情况，取得了很好的效果。
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