海难救助准合同说 theory of lawful act of salvage at sea: 海难救助法律行为说theory of special act of salvage at sea: 海难救助特殊行为说quasicontract: 依法视同契约; 准契约salvage at sea: 海上救助; 救助捞救applicable law of salvage at sea: 海难救助的准据法下载手机词典可随时随地查词查翻译