求翻译：目前，药物质量研究内容主要集中在药品的形状、鉴别、含量限度、含量测定等基本内容。在我国药典中，与纳米药物有关的内容有 粒度及粒度分布测定法、微囊微球和脂质体制剂知道原则等，这些内容涉及到粒度、载药量、包封率、突释效应、渗漏率等研究的要求。这些内容在美国、英国以及我国的药典均有涉及，对纳米药物的制剂研 究起到了重要的指导作用。是什么意思？

At present, the quality of drug research is mainly concentrated in shape, identification, content limits, the determination of the content of the drugs. In China Pharmacopoeia, drug-related content of the nano particle size and particle size distribution measurement method, microencapsulated microsp

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At present, the medicine quality research content mainly concentrates in the drugs shape, the distinction, the content limit, contains the gauging grade basic content.In our country pharmacopoeia, has the granularity and the grain-size distribution measuring method, the microcyst microballoons and t

At present, the shape of drug quality research content focused on drugs, identification, determination of content limit, and other basics. In the Chinese Pharmacopoeia, the content associated with nano-drug method for determination of particle size and particle size distribution, lipid microspheres