silencers造句
Thetubesilencers23haveopenendportionsarrangedtofacethefanandthesilencersofthefirstset18arespacedfromthesilencersofthesecondset24inbothaxialandradialdirections.SWATteamssometimesusesilencers,notforstea...
Thetubesilencers23haveopenendportionsarrangedtofacethefanandthesilencersofthefirstset18arespacedfromthesilencersofthesecondset24inbothaxialandradialdirections.SWATteamssometimesusesilencers,notforstea...