欧洲专利局 欧洲专利局 - The official website of the European Patent Office EPO. Find information on applying and searching for patents, legal issues on patents, patent grants, rules and regulations about European and international patent applications. Explore engineering careers and apply for jobs in engineering.
世界野生动物基金会 世界野生动物基金会 - Uniting all Americans to ensure wildlife thrive in a rapidly changing world, the National Wildlife Federation builds upon our nation's conservation heritage for present and future generations.
美国国务院[美] 美国国务院[美] - Leading America’s foreign policy to advance the interests and security of the American people.