Therefore, when judging humanitarian intervention phenomena, we must make a concrete review from the angle of specific developing stages.

This article tries to distinguish two actions by comparing humanitarian interference with humanitarian assistance in some aspects,so beneficial humanitarian actions can be carried out normally.

The Negation and Re-thinhing of International Law Towards Humanitarian Intervention;

The Illegality Humanitarian Intervention;

Because humanitarian intervention breaches some principles of the international laws such as principle of national sovereignty and principle of nonintervention of interior politics, its validity is still disputed.

Legal Analysis on the UN Humanitarian Intervention

Taking advantage of the interference phenomenon in shallow water,which carries aboundant information about target movement,a novel positioning method based on single hydrophone is proposed.

This paper indicates an "interference phenomenon" which is an important problem related to the forming of heavy plates.

The influence of sense of mission on American diplomacy is as follows: above all,isolationism influenced by the mode of "a city upon a hill";secondly,interventionism influenced by the mode of exporting "American creed".

Making a general survey of the American foreign policy history, the disputes between realism and idealism, isolationism and interventionism, conservatism and liberalism run through in the whole course all the time.