Before exposure to appropriate light, the adhesive retains its liquid or viscous character, so that the optical conductor end 20 can be passed through the adhesive without any problems during the fitting process, in {HEAD ~ the process} wetting {TAIL ~ the optical conductor end} 
wetting
Before exposure to appropriate light , the adhesive retains its liquid or viscous character , so that the optical conductor end 20 can be passed through the adhesive without any problems during the fitting process , in { HEAD ~ the process } wetting { TAIL ~ the optical conductor end }
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