書籍裝訂中，在書心裝入書封之前，輕輕敲擊或放進圓脊或圓背機器，將書心脊部形塑成凸形弧面的過程。通常是與背襯裝訂同時或在之前進行。

書封圓背處理(P,,U,繁體中文-偏好,D,U,U)
圓化(,U,繁體中文-非偏好,UF,U,U)
去角(,U,繁體中文-非偏好,UF,U,U)
圓弧化(,U,繁體中文-非偏好,UF,U,U)
shu feng yüan pei ch'u li (P,,U,韋氏拼音-偏好,UF,U,U)
shū fēng yuán bèi chǔ lǐ (P,,U,漢語拼音-偏好,UF,U,U)
shu feng yuan bei chu li (P,,U,漢語拼音(無聲調)-偏好,UF,U,U)
rounding(P,,U,英文-偏好,D,U,U)
rounded(,U,英文-非偏好,AD,U,U)
rondzetten(P,,U,荷蘭語-偏好,D,U,U)
redondear(P,,U,西班牙語-偏好,D,U,U)

藝術與建築詞典根目錄
....活動層面
........過程與技術
............<過程與技術>
................<依特定種類區分之過程與技術>
....................<物件製作的過程與技術>
........................<裝訂書籍與裝訂書籍的過程與技術>
............................<書籍裝訂的過程與技術>
................................書封圓背處理

distinguished from....

背襯(書籍裝訂過程)

英文....	In bookbinding, the process of shaping the back of a text block into a convex arc, as by light hammering or by putting it through a rounding or rounding and backing machine, before the block is cased-in; usually performed at the same time or just prior to backing.
荷蘭語....	In de boekbinderij: het proces waarbij de achterkant van een boekblok in een bolronde boog wordt gevormd door er licht op te hameren of door het door een rondzet- of rugaanzet- en rondzetmachine te halen voordat het blok wordt ingesloten; wordt doorgaans tegelijkertijd met of vlak voor het knepen verricht.
西班牙語....	En encuadernación, el proceso de formar la parte posterior de un bloque de texto en un arco convexo, pasándola a través de una máquina de redondeo.

書封圓背處理............	[AS-Academia Sinica]
.................	國家教育研究院－雙語詞彙、學術名詞暨辭書資訊網 April 14, 2021
圓化............	[AS-Academia Sinica]
.................	國家教育研究院－雙語詞彙、學術名詞暨辭書資訊網 July 5, 2015
.................	經濟部智慧財產局－本國專利技術名詞中英對照查詢資料庫 July 5, 2015
去角............	[AS-Academia Sinica]
.................	國家教育研究院－雙語詞彙、學術名詞暨辭書資訊網 July 5, 2015
.................	經濟部智慧財產局－本國專利技術名詞中英對照查詢資料庫 July 5, 2015
圓弧化............	[AS-Academia Sinica]
.................	經濟部智慧財產局－本國專利技術名詞中英對照查詢資料庫 July 5, 2015
rounding............	[VP]
.................	Roberts and Etherington, Bookbinding and the Conservation of Books (1982) illustration, illstration on p. 222
.................	Feipel, Glossary of Terms Relating to Library-Binding, unpub. (1939)
.................	Letterpress Bookbinding Terminology (1928) 20
.................	Burdett, Craft of Bookbinding (1975) 108
.................	Middleton, Restoration of Leather Bindings (1984) illustration, 101
.................	Glaister, History of the Book (1960) 359
.................	Library Binding Institute Standard for Library Binding (1986)
.................	Candidate term Candidate term -- HRC -- 4/96
rounded............	[VP]
.................	Getty Vocabulary Program rules
rondzetten............	[Bureau AAT]
.................	AAT-Ned (1994-)
redondear............	[VP]
.................	TAA database (2000-)
.................	McCleary, Conservación de libros y Documentos. Glosario de Términos Técnicos (1997)
Subject:............	[Bureau AAT]
.................	Feipel, Glossary of Terms Relating to Library-Binding, unpub. (1939) 41; rounding-and-backing
.................	Gnirrep e.a., Kneep en binding (1992)

Getty AAT: 300261407 Getty AAT: http://www.getty.edu/vow/AATFullDisplay?find=costume&logic=AND¬e=&subjectid=300261407
聯合目錄： 書封圓背處理 、圓化 、去角 、圓弧化 、shu feng yüan pei ch'u li 、shū fēng yuán bèi chǔ lǐ 、shu feng yuan bei chu li 、rounding 、rounded 、rondzetten 、redondear