求翻译：实验动物在科学技术领域的广泛应用，已被世界卫生组织（WHO）所承认，在许多经济发达的国家中，实验动物已经发展成为独立的科学研究与生产部门。例如美、英、德、法及日本等都已建立了全国性的、现代化的实验动物中心、研究中心及辅助用品规程化的生产公司。是什么意思？

Widely used experimental animals in the field of science and technology has been the World Health Organization (who) acknowledged that in many economically developed countries, in experimental animals has developed into an independent scientific research and production departments. For example, the

Animal experiments in the area of science and technology, has been widely used by the World Health Organization (WHO) has acknowledged that in many developed economies in the country, and laboratory animals has become an independent scientific research and production departments. For example the US,

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Wider use of experimental animals in the areas of science and technology, has been the World Health Organization (WHO) recognizes that in many developed countries, scientific research and production of experimental animals has evolved into an independent Department. Such as the United States, Britai

The experimental animal in the science and technology domain widespread application, was acknowledged by World Health Organization (WHO) that, in many economical developed countries, the experimental animal already developed into the independent scientific research and the production department.For