technical and economical benefit
英
美
- 技术经济效果
双语例句
- Effort has been made on two main continuous ore-drawing and haulage systems and prominent technical and economic benefit have been achieved in China during the past ten years.
我国经过近十年的努力，研究试验了两种采场连续出矿运矿的技术路线，并取得了显著的技术经济效果。
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