The first reports on successful clinical use of round and elongated spermatids for assisted reproduction in 1995 suggest the benefits that the technique of spermatid conception can bring to some patients suffering from otherwise untreatable types of male factor infertility . men with non - obstructive azoospermia ( noa ) can now be treated by using intra - oocyte round spermatid injection ( rosi ) or elongated spermatid injection ( elsi ) . spermatids can be retrieved from semen or from testis biopsy specimens 目前，完全不能产生精子的非梗阻性无精子症( non - obstmctiveazoospermia , noa )患者可采用卵胞质内圆形精子细胞注射( roundspermatidinjection , rosi )或长形精子细胞注射( elongatedspermatidinection , elsi )治疗，精子细胞可从精液或从睾丸活检组织中获取。
In order to improve the credit institution of the state - owned commercial banks , it is necessary to reform the property system , improve the relationship between the banks and the government , and the relationship between the banks and the enterprises , solve the noa - performing loans , perfect the governing structure and innovate the muaging system , which can help the state - owned commercial banks to deal with the compatition successfully in the globalization and unity of the international economy 依法构建良好的信用秩序，提高整个社会的信用基础，优化融资环境，建立银行与政府、银行与企业的互动互信的关系，以促进我国金融领域的发展。研究我国商业银行信用制度，学习借鉴发达国家先进的经验，坚定市场化的发展方向，深化商业银行改革，健全法律法规，创造良好的信用法律环境，培养诚实守信的社会道德规范，使信用成为整个市场经济运行中的通行证。
