词汇	roll hatch cover
释义	roll hatch cover 卷动［式］舱口盖
随便看	discharging place discharging platform discharging port discharging potential discharging potential difference discharging print discharging printing discharging process discharging properties discharging pump discharging quay discharging rate discharging REFUSE from waterborne vessels discharging relieving arch Discharging Report in Separate Ports discharging resistance discharging resistor discharging return of book discharging rod discharging roller discharging roller table discharging rotation discharging system discharging test discharging their content but not installing it