blet drum皮带辊
metallogenic blet成矿带
Blet Kit皮带组件
blet aerator皮带松砂机
ta blet片剂
Seat blet安全带
safety blet安全带
covered blet feeder封闭式皮带喂料机
N（名词） a state of softness or decay in certain fruits, such as the medlar, brought about by overripening (由于水果过熟导致的)柔软或腐烂