12 All barges and hoppers, if utilized for marine transportation of dredged materials, shall have tight fitting seals to their bottom openings to prevent leakage of material.
12 All barges and hoppers, if utilized for marine transportation of dredged materials, shall have tight fitting seals to their bottom openings to prevent leakage of material.
所有用作海上运送挖掘物料的驳船及底卸式驳船，应在底部开口处设置牢固的密封装置，以防漏出物料。