词汇	labyrinth gland seal
释义	labyrinth gland seal 迷宫式油封
随便看	universal resonance curve Universal resort under the COCO Universal Resource Identifier Universal Resource Locater universal resource locator universal resource locators universal resources universal retractor universal retrieval universal reversing roughing mill universal revolution universal revolution counter universal revolving milling head universal rheostat universal right universal ring frame universal rings universal ring type crusher universal ring-type crusher universal rivet universal R-matrix universal robot universal rod universal rod body universal roller