accumulation horizon是什么意思

用法例句

Research on accumulation and combustion in ventilation systems of public buildings;

公共建筑通风空调系统聚积物燃烧特性研究

To know the accumulation and combustion characteristics in ventilation systems of chemical fiber workshop,a chemical fiber workshop was selected for accumulation investigation on its ventilation system considering the typical industrial and technical characteristics.

选取某化纤厂车间通风系统,对其风管及设备部件表面附着的聚积物进行实测与燃烧特性分析。

The controlled roles of coal－ accumulation by paleostructure and paleogeography and sedimentary environment have been explained, through analysis and study of Late Paleozoic coal－ bearing strata in Ningxia Region.

通过对宁夏晚古生代含煤岩系的分析研究，阐述了古构造、古地理、沉积环境对煤层聚积的控制作用。