善意取得制度起源于“以手护手”原则，现已纳入各国民法中。
Derived from the principle of "hand muss hand wahren", bona fide gaining has been incorporated into civil laws of all the countries.
现代意义上的检察制度起源于国王代理人制度。
Modern procuratorial supervision system came of the king procuratorial action.
先占制度起源于罗马法，是所有权的原始取得方式之一。
Preoccupation system originated from Roman law, is one of primitive acquisition mode of ownership.
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