ballast〔名词〕镇定物,镇流电阻详细»
ballast〔名词〕压舱物详细»
ballast〔名词〕镇重物(镇流器,道碴;vt.镇重(使...稳定)详细»
ballast〔名词〕道碴,压舱物,镇流器,道碴,镇流器,压舱物详细»
ballast〔名词〕压舱物详细»
ballast〔名词〕镇重物,镇流器,碎石详细»
ballast压舱物,压载详细»
ballast〔名词〕压载详细»
ballast沙囊详细»
ballast压载压舱物详细»
压舱物ballast block详细»
压舱物ballast详细»
压舱物ballast;kentledge详细»
压舱物ballast;bottom cargo;ballast cargo;base cargo详细»
压舱物ballast;bottom cargo;ballast cargo;base cargo详细»
压舱物ballast详细»