slowupn.减速(慢化；延迟；延慢)slowadj.慢的adv.慢慢地v.放慢；减速slow permeability慢渗透slow-feathering快羽slow neutralizing慢中子slow-speed test低速试验slow fermentation缓慢速发酵slow condensation慢凝集slow motion clamp慢动夹slow death factor慢性死亡因素, 缓慢死亡因素slow-speed band低速带slow vaporization慢挥发