noun🔗Share隅石，墙角石。 Any of the corner building blocks of a building, usually larger or more ornate than the surrounding blocks."The old library had impressive quoins made of light-colored stone, clearly standing out against the red brick walls. "那座老图书馆有着引人注目的隅石，那些浅色石材制成的墙角石在红砖墙的映衬下，显得格外突出。architecturebuildingChat with AIVocabulary GamePractice Reading
noun🔗Share拱顶石，楔形拱石 The keystone of an arch."The quoin held the entire brick arch of the old doorway together, preventing it from collapsing. "拱顶石支撑着旧门道整个砖砌拱形结构，防止它坍塌。architecturebuildingpartChat with AIVocabulary GamePractice Reading
noun🔗Share夹子，垫楔. A metal wedge which fits into the space between the type and the edge of a chase, and is tightened to fix the metal type in place."The printer tightened the quoin with a special key to lock the metal letters firmly inside the frame before printing the newspaper. "印刷工用特制的扳手拧紧夹子(quoin)，以便在印刷报纸前将金属活字牢牢地固定在框架内。technicalmachinetypeindustryChat with AIVocabulary GamePractice Reading
noun🔗Share垫楔，塞木楔。 A form of wedge used to prevent casks from moving"The movers used a quoin to keep the heavy wine barrel from rolling off the truck's ramp. "搬运工用垫楔来防止沉重的葡萄酒桶从卡车的斜坡上滚下来。nauticalitemChat with AIVocabulary GamePractice Reading
noun🔗Share垫楔，炮楔 A wedge of wood or iron put under the breech of heavy guns or the muzzle of siege-mortars to raise them to the proper level."The artillery crew carefully adjusted the quoin under the cannon's breech to elevate the barrel for a longer shot. "炮兵们小心地调整着大炮炮尾下面的炮楔，以此抬高炮管，从而射得更远。militaryweaponnauticalarchitecturebuildingChat with AIVocabulary GamePractice Reading
verb🔗Share楔紧, 垫稳 To wedge or steady with quoins."The carpenter had to quoin the wobbly table leg with shims to stop it from shaking. "木匠不得不用垫片把摇晃的桌腿垫稳，让它不再晃动。architecturebuildingChat with AIVocabulary GamePractice Reading
