diffuser 扩压器；扩散器 diffuser case 扩散机匣 diffusion bonding 扩散焊接 ..
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diffuser case fairing 扩散机匣整流罩
diffuser case
扩散情况
以上为机器翻译结果，长、整句建议使用 人工翻译 。
A brass impeller surrounded by a cast iron diffuser, bracket, and case makes this pump as strong as those used by your grandfather!
泵的黄铜叶轮由铸铁扩散器、支架和外壳包围，使泵非常坚固耐用！
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