您要查找的是不是：
- rated specific speed 额定比速
- 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。
- He gave transcripts of these chat-room discussions to a new group of students and asked them to rate specific individuals\' behavioral traits such as extraversion, openness and neurosis. 他把这些聊天室的讨论记录抄本给新的一组学生，叫他们为各个人的行为特性评级，譬如外倾性、开放性和神经质等特点。
- 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。
- At this rate we won't be able to afford a holiday. 照这样下去，我们不会有时间／钱去度假的。
- Semiconductor power convectors - Adjustable speed electric drive systems - General requirements - Part 1 : rating specifications, particularly for D.C. motor drives. 半导体电力变换器.;可调速电驱动装置
- low specific speed centrifugal pump 低比转速离心泵
- 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
- What's the going rate of computer programmers? 计算机程序设计人员的一般工资是多少？
- By power we mean the rate of doing work. 我们说功率就是指做功的速率。
- His house was rated at$300 a year. 他的房子估计每年应交300美元的税。
- He is rated one of the rich men in Texas. 他被认为是德州最富有的人之一。
- They charge a fixed rate for each transaction. 他们对办理的每项业务收取一定的费用。
- The going rate for freelance work is 5 an hour. 自由职业者的现行酬金是每小时5英镑。
- At that rate, he ought to be punished. 如果那样，他应该受到惩罚。
