单词	active sealing
释义	active sealing 主动密封
随便看	shore-based direction-finding system shore-based ferry radar shore-based intelligence centre shore-based maintenance shore based management shore based radar shore-based radar shore-based radar chain shore-based radio station shore-baseds Shore-Based Scouting Squadron shore-based telephone Shore-Based Tracking System shore-based winch station shore-base radar shore battery shore beach shore beach refueling shore beach supply shore beacon shore connection cable shore connection cables shore connection structure shorebirds shore birds