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- suction specific speed 空吸比速度
- In this paper, the structure, principle and performance of a low specific speed roto-jet pump are introduced. 介绍了一种极低比转数旋喷泵的结构、工作原理及性能特点。
- It is suggested that the specific speed would be replaced by diametric ratio,and the new nameplate would be used. 建议比转速应为直径比所取代,并启用水斗式水轮机新铭牌。
- A popular one is the "inkometer", which measures the internal cohesion of an ink while splitting at a specific speed and gives a figure without unit. 常用的是“油墨粘度计”，它测量油墨在某个速度下分裂时的内部聚合力，用一个没有单位的数值表达。
- The conclusion shows that using high specific speed impeller in the first step of the two-stage axial flow pump can improve the trust and efficiency of the propulsion system. 针对数据库中现有的水力模型;对模型的所有排列方式进行计算;得到在两级轴流泵中首级采用高比转速的叶轮可以提高喷水推进器的推力和推进效率.
- The principle,steps and examples of designing the ultra-low specific speed impeller using the flow path blockage method and the analytical method are presented. 文中介绍了采用堵流道法和解析法进行超低比转速叶轮设计的原理、步骤及实例。
- There is no special theory and design method to the low specific speed centrifugal pump.It adopts the waterpower design method of common centrifugal pump. 低比转速离心泵水力设计由于没有专门的理论和设计方法，只能采用普通离心泵的水力设计方法，从而导致圆盘摩擦损失大，泵的效率低。
- Some pumps and all vacuum cleaners work by suction. 有些泵和所有真空吸尘器都是借吸力工作的。
- low specific speed centrifugal pump 低比转速离心泵
- Flies' feet stick to surfaces by suction. 苍蝇的脚借吸力可附着于物体表面上。
- No horse has a speed comparable to that of his. 没有一匹马的速度能比得上他的马。
- high specific speed mixed-flow pump 高比转速混流泵
- centrifugal pump with high specific speed 高比转数离心泵
- Education should not be restricted to any one specific age group. 教育不应限制在任何特定的年龄组上。
- That's all there is to make a speed dial call. 在那里全部要进行快速拨号呼叫。
- We'll get the water out with a suction pump. 我们将用抽水机把水抽出来。
- The great virtue of air travel is speed. 乘飞机旅行的最大优点是速度快。
- Dirt and dust are drawn into a vacuum cleaner by suction. 污物和灰尘被吸入吸尘器。
- He gave us very specific instructions. 他给我们做了非常明确的指示。
- He drove the car at full speed through the town. 他驾驶汽车全速穿过那座城镇。
