The blank" >target="_blank" >degree of blank" >target="_blank" >glossary/obstruction/" class="glossaryLink" data-cmtooltip="41230c43d02589bf4780b242c2c6fa01" blank" >target="_blank" >obstruction to the transmission of visible rays. Used in blank" >target="_blank" >glossary/connection/" class="glossaryLink" data-cmtooltip="f913d6649247611622156a587cc430aa" blank" >target="_blank" >connection withblank" >paint. (Bridge, 2019)