3-D curved roof

B kind curved line and curved surface

Changing flat roof to slope roof

diagonal ridge for hip roof，vertical ridge for gable roof

flat- roof-to- slope-roof

flat-roof-to-slope-roof

flat-roof-to-sloping roof

roof pressure roof weight

roof prism (=roof-angle prism)

180° curved duct with rectangular cross-section

3D curved prestressing tendon

3D curved surface

3-D curved surface

3-D curved surface processing

3-D curved-surface fitting

3-D free curved surface

6-node curved quadrilateral element

a curved box girder bridge

acutely curved clamp