noun
support line; support level
In technical analysis of financial markets, a price level where a downtrend is expected to pause due to a concentration of demand.
この銘柄は支持線を割り込んだ。
This stock broke below its support line.
noun
supporting wire; subsidiary wire
In electrical engineering, a wire used to provide mechanical support, often for overhead cables or components.
電柱の間に支持線が張られている。
A supporting wire is strung between the utility poles.