top filling meaning in English

顶部加料器

The construction technologies of cave without top fill and tunnel gate
明洞和洞门工程施工技术； 4
Railway applications - tank wagons - top devices for bottom emptying and top filling of liquid products
铁路设施.油罐车.液态产品用顶部装填和底部卸料顶部装置
Railway applications - tank wagons - part 5 : top devices for bottom emptying and top filling of liquid products
铁路设施.油罐车.第5部分:液态产品用顶部装填底部卸料式装置
Railway applications - tank wagons - part 5 : top devices for bottom emptying and top filling of liquid products ; german version en 12561 - 5 : 2002
铁路应用.储罐车.第5部分:液态制品用底部卸料和顶部