This technology mainly includes researches on helicopter flush equipment parameters and flush procedures.
直升机水冲洗带电线路绝缘子作业于2006年正式服务于跨区电网。
The navigation facility of Jinghong Hydropower Station is a new-style ship lift named the hydraulic floating vertical ship lift,which have obvious advantage of safety and simple installation com- pared with ship lifts of other styles.
景洪升船机为水力浮动式垂直升船机。
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