Established. It is a regulating.

D 60+60=120 16+16=32 5 160 40 E 60+60=120 18+27=45 44/s 216 96 4X24 1 1 B 1 2l/*+ 2l/2=5 1 6 6 1 +2=3 4‘/a 142/ 5 1 1 b , and this requires a simultaneous increase in the same time there.