经常性费用 meaning in English

recurrent costs

In industry , compressed air , heat , cooling and electricity are often not billed by production line but expressed as an overhead cost
在企业中，压缩空气、加热、冷却和电力，通常都不列入生产线的成本，而算在经常性费用里。
In the past three years , the government handled an average of about 10 000 tonnes of waste tyres each year . the recurrent costs for handling these tyres , including the operation costs of landfills and refuse transfer stations , were about hk $ 0 . 9 million per year
过去3年，政府平均每年处置约10 , 000公吨的废车胎，处理这些车胎的经常性费用，包括堆填及废物转运站的费用，每年约为港币90万元。