掛在主簾幕之內、使光線柔和並保持隱私的薄紗簾。掛在門窗玻璃或百葉窗上的內層簾幕稱為「玻璃簾」。

內層簾幕(P,,U,繁體中文-偏好,D,,)
nei ts'eng lien mu(P,,U,韋氏拼音-偏好,UF,U,U)
nèi céng lián mù(P,,U,漢語拼音-偏好,UF,U,U)
nei ceng lian mu(P,,U,漢語拼音(無聲調)-偏好,UF,U,U)
undercurtains(P,,U,英文-偏好,D,U,PN)
undercurtain(,U,英文-非偏好,AD,U,SN)
curtains, inner(,U,英文-非偏好,UF,U,N)
inner curtains(,U,英文-非偏好,UF,U,N)
sub-curtains(,U,英文-非偏好,UF,U,N)
under-curtains(,U,英文-非偏好,UF,U,N)
under-draperies(,U,英文-非偏好,UF,U,N)
underdraperies(,U,英文-非偏好,UF,U,N)
ondergordijnen(P,,U,荷蘭語-偏好,D,U,U)
ondergordijn(,U,荷蘭語-非偏好,AD,U,U)
visillos(P,,U,西班牙語-偏好,D,U,PN)
visillo(,U,西班牙語-非偏好,AD,U,SN)

藝術與建築詞典根目錄
....物件層面
........裝備與設備
............裝備 (層級名)
................家俱 (人工製品)
....................<依形式或功能區分之家具陳設>
........................<覆蓋物與懸掛物>
............................<依特定種類區分之覆蓋物與懸掛物>
................................<依地點位置或背景脈絡區分之覆蓋物與懸掛物>
....................................<開口之覆蓋物與懸掛物>
........................................curtains
............................................<依地點位置或背景脈絡區分之簾幕>
................................................內層簾幕

distinguished from....	玻璃簾
meaning/usage overlaps with....	紗簾

英文....	Thin, often sheer, curtains used under the main curtains to soften light and give privacy. For flat-hanging undercurtains fitted against the glass of a window or door, or immediately over a shade, use "glass curtains".
荷蘭語....	Dunne gordijnen, vaak vitrage, die onder de hoofdgordijnen worden gebruikt om het licht te dempen en privacy te geven. Gebruik 'glasgordijnen' voor ongeplooide ondergordijnen die vlak tegen het glas van een raam of een deur hangen of direct boven een scherm.
西班牙語....	Cortinas delgadas, a menudo transparentes, usadas bajo las cortinas principales para suavizar la luz y dar privacidad. Para visillos colgantes lisos ajustados contra el vidrio de una ventana o puerta, o inmediatamente sobre una persiana, use "cortina transparente”.

內層簾幕............	[AS-Academia Sinica]
.................	AAT-Taiwan 借詞編輯與使用原則 (2013)
undercurtains............	[VP]
.................	Clifton-Mogg and Paine, The Curtain Book (1988) 15
.................	Cooke, Upholstery in American and Europe (1987) 181
.................	Early American Life (1970-) Vol. 1, No. 4, 55
.................	Wilhide, Laura Ashley Windows (1988) IND
.................	Fowler and Cornforth, English Decoration, 2d ed. (1978) 121
.................	Schoeser and Rufey, English and American Textiles (1989) 18
.................	Nomenclature 3.0 for Museum Cataloging (2010)
undercurtain............	[VP]
.................	Getty Vocabulary Program rules
curtains, inner............	[VP]
.................	Getty Vocabulary Program rules
inner curtains............	[VP]
.................	Montgomery, Printed Textiles (1970) 62
.................	Montgomery, Textiles in America (1984) 62
sub-curtains............	[VP]
.................	Edwards and Ramsey, Connoisseurs' Complete Period Guides (1968) 1178
.................	Walton, Golden Age of English Furniture (1973) page xviii
.................	Schoeser and Rufey, English and American Textiles (1989) 18
.................	Thornton, Authentic Decor (1984) IND
under-curtains............	[VP]
.................	Hoffman, Fairchild's Dictionary of Home Furnishings (1974) 237
under-draperies............	[VP]
.................	Hoffman, Fairchild's Dictionary of Home Furnishings (1974) 237
underdraperies............	[VP]
.................	Dizik, Concise Encyclopedia of Interior Design (1988) 52
ondergordijnen............	[Bureau AAT]
.................	AAT-Ned (1994-)
ondergordijn............	[Bureau AAT]
.................	AAT-Ned (1994-)
visillos............	[CDBP-DIBAM]
.................	Comité, Plural del término en singular
visillo............	[CDBP-DIBAM]
.................	Moliner, Diccionario de uso del español (2004) II:1537
.................	Dewey, Sistema de Clasificación Decimal Dewey e Índice Relativo (2000) 795
Subject:............	[Bureau AAT]
.................	Dizik, Concise Encyclopedia of Interior Design (1988) 52; glass curtains
.................	Boyle, Do-It-Yourself Designer Windows (1985) 200; undersheers
.................	Schoeser and Rufey, English and American Textiles (1989) 18; glass curtains
.................	Montgomery, Textiles in America (1984) 64; glass curtains
.................	Van Dale Engels-Nederlands (1989)

Getty AAT: 300204093 Getty AAT: http://www.getty.edu/vow/AATFullDisplay?find=costume&logic=AND¬e=&subjectid=300204093
聯合目錄： 內層簾幕 、nei ts'eng lien mu 、nèi céng lián mù 、nei ceng lian mu 、undercurtains 、undercurtain 、curtains, inner 、inner curtains 、sub-curtains 、under-curtains 、under-draperies 、underdraperies 、ondergordijnen 、ondergordijn 、visillos 、visillo