The existing problem in operation of siphonal sand filter and innovation were introduced.
介
吸式砂滤器在运行过程中出现的问题及改造措施。
吸的；水管的；吸作用的（等于siphonic）The existing problem in operation of siphonal sand filter and innovation were introduced.
介吸式砂滤器在运行过程中出现的问题及改造措施。
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。
声明：以上例句、词性分类均
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