consistent grease
常見(jiàn)例句
- Introduces the research and manufacture, application co nd nations of consistent grease feeder in Tunlan coal mine analyses the social and economic results.
介紹黃油給油器在屯蘭礦的研制和應(yīng)用情況，分析了由此產(chǎn)生的經(jīng)濟(jì)效益和社會(huì)效益。 返回 consistent grease