London's share of net premium income in marine insurance, a traditional mainstay of Lloyd's, has shrunk from around 30% in the mid-1980s to 20% in 2005.

它的传统支柱业务，海上保险的保费利润从80年代中期占全球份额的30%下滑到2005年的20%。

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Theinclusion of this special risk will be subject to an additional premium that will normally be higher than the basic insurance for the ordinary marine risks.

包括这种特别险就必须附加保险费。这种保险费一般要比通常的海洋运输货物险的基本险高。

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