The existing problem in operation of siphonal sand filter and innovation were introduced.
介绍了虹吸式砂滤器在运行过程中出现
问题及改造措施。
；
；虹吸作用（等于siphonic）The existing problem in operation of siphonal sand filter and innovation were introduced.
介绍了虹吸式砂滤器在运行过程中出现问题及改造措施。
The former used microcatheter to "embed" the tumor vessel, the later used "siphonal" technique.
比较两
疗效、副作用并作应用价值分析。
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，
表达内容亦不代表本软件
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