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新型给药技术的研究、开发与应用始终是各国（尤其发达国家）制药工业研究人员的重要课题之一。在形形色色的给药技术中，最受医药专家青睐的是以下四大类新型给药方式,即: 1．透皮释放剂；2．植入式制剂；3．（干粉）吸入剂；4．口服长效缓释剂。专家预测,以上四大类新型制剂?
The research, development and application of new drug delivery technologies have always been one of the important topics for researchers in the pharmaceutical industry in various countries (especially developed countries). Among the various drug delivery technologies, the most popular among medical experts are the following four major types of new drug delivery methods: Transdermal release agent; 2. Implantable preparations; 3. (Dry powder) inhalant; 4. Oral long-term release agent. Experts predict that the above four types of new agents?