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Hydroelectric power stations
containing
垂线
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Chinese
English
倒铅
垂线
inverse plummet
垂直线
vertical
垂线
plumb
垂线
perpendicular
垂线
观测仪
coordinatograph for plummet observation
导线最大弧垂
maximum sag of conductor
正铅
垂线
right plummet
电线垂度
sag of line
铅
垂线
lead line
铅
垂线
plumb line
铅
垂线
竖井
plumbline well
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