expandern.扩充器expandv.使 ... 膨胀；详述；扩张；增加；张开expanded range interval延展间距expandable liner hanger可膨胀尾管悬挂器expanded sphtrical clay页岩expanding-slot burner扩张型缝隙喷燃器Expand the growth space拓展生长空间Expanded graphite block膨胀石墨块expanded bed adsorption扩张床吸附expand one's vocabulary真性集结体expandable metal anodes扩张金属阳极expanding of enrollment扩招