idler roll造句
TRIZtheorybasedtheidlerrollsealingresearchThesystemfeaturesasealedcuringchamberbuiltaroundasmallidlerroller....
相关idler的文学知识
idler造句
Introducedanewtypeofidlernamedcentrifugalbackidlerusedincoalminebeltconveyors.Bankidler:hopetofindmyteachersandfriendshere!Thisidlerwassatedwithfoodandremainedidle.Thepresentinventionisbakeliteidleran...