double-contact

常见例句

"Double contact " craft at 20 centuries by the company that do obeisance to ear 60 time develop a success, secondly oxidation sulfur volatilizes the quantity decreases apparently than standard craft.
“双接触”工艺由拜耳公司于20世纪60年代开发成功,其二氧化硫挥发量比标准工艺明显减少。
overhead double contact line system
架空双接触线系统
double contact detection meter of gear
双啮仪
double contact wires type catenary
双触轮式吊线
double contact wire type catenary
双接触线式吊线
The Automation Reform of Gear Double Contact Detection Meter
齿轮双面啮合检测仪自动化改造