论述了井下矿山矿井计量漏斗的结构、工作原理和设计方法等。
This paper describes and discusses the configuration, coorking principle and design methods, etc, of measuring hoper used in underground mine.
组装或移除称重元件、漏斗和计量设备时不需要任何工具。
No tools required for assembly or removal of load cell assembly, hopper and metering device?
目前，只有两种团体会运用到这种中、下游漏斗计量法，而且只在广告投放期结束后才会一起研究效果数据。
Today, two different groups use these bottom- and mid-funnel metrics; and they only collaborate after the campaign is over.
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