以下为句子列表：
英文: DO NOT use valves that may cause excessive restriction to water flow. Use full flow ball or gate valves only.
中文: 不要采用可能对水流造成过大障碍的阀门。只选用全通道球阀或闸阀。
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英文: Due to the outstanding shear rate control of the MCR series it is possible to measure a full flow curve with just one revolution of the excentrically rotating sphere.
中文: 由于MCR系列精湛的剪切应力控制，只需一个非同心的旋转球体即可测量一个完整的曲线。
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英文: The full flow field characteristics of a supersonic inlet are illustrated at design conditions; The influence of attack angle on flow field of the inlet is investigated; B-spline theory is used to model the inlet with attack angle.
中文: 给出了设计状态下进气道内外流场特征；分析了攻角变化对进气道流场的影响；以数值仿真结果为基础，利用B样条理论建立了反映攻角、马赫数及可调斜板角度变化的超声速进气道数学模型。
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