词汇	环形填料
释义	环形填料 ring packing
随便看	spring winch spring water spring-water springwater cyst spring water cyst Spring Water is very clean and delicious Spring Water is very clean and delicious! spring water quantity spring wheat spring-wheat Spring wheat and carrot interplant spring wind Spring Wind and Bamboo Flute spring winder Spring wind not sleep know spring wind tape spring wind-up spring-winter marriage spring-wiping-type switch spring wir spring wire spring wire finger splint spring with catch spring spring withdrawing spring with semi rigid suspension