11. The third layer is the fertile, spore-bearing surface , the brownish-black hymenium. 12. Bi-material bearings consist of two materials, a metal shell and a plastic bearing surface . 13. He also adopted large bearing surfaces to reduce wear, something common in North America. 14. The hymenium ( fertile, spore-bearing surface ) is 6 10 spores are cream coloured. 15. Solid-sawn timber and glulam posts are generally notched to form a truss bearing surface . 16. In 2007, manufacturers started incorporating antioxidants into UHMWPE for hip and knee arthroplasty bearing surfaces . 17. Members of the genus " Trichoglossum " have tiny hairs known as spore bearing surface . 18. This was achieved with a bearing surface machined onto the front end of the crank. 19. The long bearing surface on the Gewehr 98 eliminated the addition of a muzzle ring. 20. Many of the expendable parts had been designed with generous bearing surfaces , to extend their life.
