As an abstract act, act on commercial instrument is different from other legal ACTS.

票据行为的无因性不同于一般法律行为，具有自己的独特之处。

The fourth part analyses the primary problems in administrate hearings of China at present, based on the classification to administrative factual act and administrative abstract act.

第四部分根据具体行政行为听证和抽象行政行为听证(行政决策听证和行政立法听证)的划分，对我国目前行政听证制度存在的主要问题进行了分析。

Abstract: Project claims are an important means for contractors to maintain its contractual rights, is an act of economic compensation.

摘要：工程索赔是承包商维护其合同权益的重要手段，是一种经济补偿行为。