您要查找的是不是：
- This paper describes the flow velocity calculation method for natural riverway based on the hydrostatic open channel uniform flow theory and its relative formulas. 为防止河床持续下切造成管道事故,一般对穿越河流的长输管道采取护底措施进行防护。
- The bi-directional flow often happens in the downdraft reach due to the influence of main channel, so that its velocity calculation is obviously different from normal river in practical engineering. 倒灌河段受干流影响往往存在双向流动，其流速的确定与单一河道明显不同，对缺乏必要水文和地形资料的大量中小倒灌河段，使用数学模型或物理模型常常遇到困难。
- I find a surplus store and buy a pocket calculator. 我找到一家出售剩余物品的商店，买了一台袖珍计算机。
- The calculator needs a new battery. 计算器需换新电池。
- Gazelles can move with astonishing velocity. 羚羊跑起来速度惊人。
- The desk calculator use a roll of paper. 这台台式计算机使用卷纸。
- Cross-check your answer by using a calculator. 用计算器核对一下你的答案。
- Lashing velocity of pump is concerned with nature of air. 泵的抽气速率与气体的性质有关。
- The car was moving at such a velocity! 那辆汽车的速度简直太快了！
- Gazelles can movewith astonishing velocity. 羚羊跑起来有时速度惊人。
- The hare darted off with the velocity of a bird. 野兔像鸟一样快速掠去。
- I totaled my expenses with a calculator. 我用计算器算出开支的总金额。
- We offered him the calculator for US$50. 这计算机我们向他开价五十美元。
- Impact of Seismic Resolution on Accuracy of Velocity Calculation 地震分辨率对速度计算精度的影响
- A hand-held calculator; a hand-held video camera. 一台便携式计算器; 一架手提式录相机
- The velocity of light is about 186,000 miles per second. 光速大约是每秒十八万六千英里。
- Does anyone have a calculator here? 这里有没有人有计算机?
- I found a surplus store and bought a pocket calculator. 我找到一家出售剩余物品的商店，买了一台袖珍计算机。
- The rate of change of velocity with respect to time. 加速度速度相对于时间变化的速率
- Solar calculator shall be wrapped up in seaworthy waterproof paper. 太阳能计算器应以适于航海的防水纸包装。
