heart bond
(masonry) A bond in which no header stone stretches across the wall, but two headers meet in the middle, and their joint is covered by another stone laid header fashion.
On a daily basis.
plural of tranquilizer
plural of arylacetylene
職人たちは庭の塀に、ヘッダー石（短面の石）が壁を横切らず、二つのヘッダーが中央で出会い、その継ぎ目が別のヘッダーとして配置された石で覆われるという組積法を選んだ。
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DiQt
Free
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