31、Convention on Contracts for the International Sal es of Goods, which has been put into effect since January 1st 1988, is a unified , substantive law regulating international trade activity .

32、(i) constituted or otherwise organized under the law of that other Member, and is engaged in substantive business operations in the territory of that Member or any other Member;

33、The humanity practices manifests by the inherent contradictions betweent transcendence and the non-transcendence, along with the market economy appearance and the development, which appears by one kind of substantive form.