单词	plumb line
释义	plumb line noun 1 : a line (as of cord) that has at one end a weight (such as a plumb bob) and is used especially to determine verticality 2 : a line directed to the center of gravity of the earth : a vertical line Example Sentences Recent Examples on the Web Every two weeks, a dam employee enters one of the four concrete intake towers and lowers a plumb line down to the water level to take an exact measurement. Joshua Partlow, Anchorage Daily News, 29 June 2022 Since that's often not the case, Rees recommends drawing a plumb line, basically a guideline to ensure your wallpaper is aligned. Hadley Keller, House Beautiful, 4 Dec. 2020 Make sure the paper's edge is flush with the plumb line to start, then align subsequent strips with the strip before them. Hadley Keller, House Beautiful, 4 Dec. 2020 Four weighted plumb lines hung from the ends of the arms. Kiona N. Smith, Ars Technica, 7 Dec. 2019 Then gently unroll the paper strips onto the wall, working your way from top to bottom, and keeping the edge of the paper aligned with the plumb line. Daniel Bortz, sacbee, 15 June 2018 My father’s simple existence has been like a horizontal plumb line for me, one to gauge myself against. R. Daniel Foster, WSJ, 14 June 2018 Thankfully the technology used today has advanced beyond dangling plumb lines over the side of the ship. Kyle Frischkorn, Smithsonian, 13 July 2017 See More Word History First Known Use 15th century, in the meaning defined at sense 1
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