ENVIRONMENT #375145 IATE #1409836 bacóir gaoithe Tagairt Faomhadh an téarma seo mar chuid de Thionscadal Lex ga wind spoileren Sainmhíniú the top one third length of each stack is equipped with wind spoiler to cater for vortex shedding Tagairt BTM dispositif d'aspirationfr