R
type: ObjectProperty
sub property of: ratio
label: facteur de réflexion moyen
label: reflection @en
label: reflexión @es
label: riflessione @it
label: réflexion

TL
type: ObjectProperty
sub property of: ratio
label: coefficient de transmission lumineuse
label: transmittance
label: transmittancia @es
label: transmittanza @it

angle de ciel visible
type: ObjectProperty
sub property of: angle

élément opaque
type: Class
subclass of: Thing
subclass of: Restriction
  on property: R
  some values from: QuantityValue
label: elemento opaco @es
label: opaque element @en

element transparent
type: Class
subclass of: Thing
subclass of: Restriction
  on property: skyAngle
  some values from: QuantityValue
subclass of: Restriction
  on property: TL
  some values from: QuantityValue