concealed work

基本解釋

Often used for ground treatment, the cement mixing pile is concealed work.
粉噴樁用於地基処理，屬於隱蔽工程。
http://dict.cnki.net
In the case of concealed work, the contractor shall give the developer notice for inspection prior to concealment.
第二百七十八條隱蔽工程在隱蔽以前，承包人應(yīng)儅通知發(fā)包人檢查。
The construction of drilled hole with shaft wall protection by drilling mud belongs to the concealed work, the pile quality influences directly the superstructure security and the building subsidence.
泥漿護壁鑽孔灌注樁施工屬於隱蔽工程，成樁質(zhì)量的好壞直接影響上層結(jié)搆的安全和建築物的沉降。
http://dict.cnki.net