上海海运局是交通部所属最大的海上运输单位之一,承担国内外客、货、油运输任务。全局拥有189艘船舶,总吨位200余万吨。船舶多数陈旧,其中建造于70年代以前的占70.4%。旧船结构复杂,防鼠设施不完善,鼠患严重,船员及旅客的衣物、行李等常被咬坏,货物损坏时有发生;更有甚者,若咬坏电线,造成短路,将严重威胁航行安全。为 Shanghai Maritime Bureau is one of the largest maritime transport units under the Ministry of Communications and undertakes the task of passenger, cargo and oil transport at home and abroad. The overall ownership of 189 ships, with a total tonnage of over 2 million tons. The ships were mostly old, 70.4% of which were built before the 1970s. The complex structure of the old boat, imperfect rodent control facilities, rats suffering serious crew and passenger clothing, luggage, etc. are often bitten, the goods have occurred from time to time damage; what is more, if the wire bites, resulting in short circuit will be a serious threat Sailing safety. for