participator

This thesis believes that in the world climate diplomacy, EU is the undeniable leader, America is the powerful challenger, Japan is the pioneer in a dilemma and China is an active and promising participator.

本文认为在世界气候外交中，欧盟是无可否认的领导者、美国是强大有力的挑战者、日本是进退两难的领先者、中国是积极有为的参与者。

The successful governance to the household fanners depends on the rules or institutions that can produce and allocate economic rent perfectly for each participator to satisfy the stake-holders' ( the firm, the agents and the households) incentive compatibility constrain and participation constrain.

对农户的成功治理，取决于各种治理规则／制度能为利益相关者（公司、片长、农户）创造经济租金并妥善分配经济租金，以满足利益相关者的参与约束和激励兼容约束。

Building a human computer interaction environment that supports natural communication and interaction among participator groups is the key issue of virtual teleconferencing system.

构造能够支持与会者群组间自然方式交流与交互的虚拟会议人机交互环境是虚拟会议要解决的核心问题。