原文：
低汽蚀屏蔽泵的结构设计： 屏蔽泵为了保证高汽蚀性能， 叶轮的设计采取了一些特殊的技术措施。叶片工作面和背面选取适当的圆弧半径和圆心位置作出，使叶片出口宽度加宽，这吸取了窄流道的优点；电动机的转子和叶轮固定在同一根轴上， 装在同一个密封壳体内，此压力容器只有静密封，没有动密封装置，从根本上解决了被输送液体的外泄问题。 该种泵主要有泵和屏蔽电机两部分组成。结构紧凑，体积小，重量轻，无冷却风扇，噪声较低；使用范围广，运转可靠，构造简单，{jd1}无泄漏，是一种理想的循环泵。其液力端可以按照离心泵通常采用的结构型式和有关的标准规范来设计、制造.

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译文：
Low pump cavitation shield structure design: Shielding pump cavitation in order to ensure high performance, the design of the impeller taken some special technical measures. Blade face and the back of selecting the appropriate radius and the circle center to make, widening the width of the leaf exports, which draws on the advantages of a narrow channel; motor rotor andimpeller with a fixed axis, packed in a sealed shell with the body, this static seal pressure vessels only, no seals, a fundamental solution to the problem of transported liquid leakage. The main types of pump motor pump and shield composed of two parts. Compact structure, small size, light weight, no cooling fan, low noise; use a wide range of reliable operation, simple structure, absolutely no leaks, is an ideal circulation pump. The hydraulic pump usually end can follow the structure of types and standards related to design, manufacture.