... 双膜理论 two-film theory 双盘结构 double-deck construction 双偏心密封式蝶阀 double-eccentric seal type butterfly valve ...
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double-deck construction
两层的建筑
以上为机器翻译结果,长、整句建议使用 人工翻译 。
Be adapt to covey heavy abrasion, high-concentration dreg, heavy solid-liquid pump's body is used double-deck construction, in other words, being made of inside lining and outside shell.
为适应输送强磨蚀、高浓度渣浆的要求,重型固液泵的泵体采用双层泵体结构,即由内衬和外壳两部分组成。
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