空间频率特性 optical transfer function; spatial frequency characteristic
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Steering gear efficeieny characteristic 转向器传动效率特性
Power and efficiency characteristics for steady flow irreversible carnot engine with heat leak 有热漏时定常态不可逆卡诺热机功率效率特性
We must master its resistance and efficiency performance before finalizing the design of moisture separator 设计工作者在设计滤清器定型产品前必须掌握其阻力特性和效率特性。
Obtained numerical simulation results of flow fields include the resistance and efficiency performance , with the geometrical boundary completely according with the actual one and nothing being simplified . 2 在几何边界形状上严格反映物理真实而不作任何简化,获得了包括阻力特性和效率特性在内的计算结果; 2
The numberical simulating of the flow fields in the multilayer gauze stages . made an fruitful attempt to simulate numerically the effiency performance . obtained results include the resistance and efficiency performance ; 3 对数值模拟网垫级的效率特性做卓有成效的开拓性尝试,获得了包括阻力特性和效率特性在内的计算结果; 3
( 4 ) in the interest of identifying the efficiency characteristic of the retrofitted turbine runner , based on relative efficiency method , the paper carried out test on the efficiency of the small turbine in tai pin shao 0万千瓦是合理的。 ( 4 )为了鉴定原型水轮机转轮改型后的效率特性,采用相对效率法对太平哨的小机进行了效率试验。
The prerequisite of collaboration of logistics is effectiveness which builds upon transparency . the transparency of logistics should be achieved through integrated information process 物流链各方合作的前提条件是效率和效率特性的透明性,透明性是通过集成化的信息处理来完成的,因此信息流的集成能力是电子商务环境下,物流系统不可或缺的重要组成部分。
Using a special experimental wind tunnel , large number of experiments were carried out to study the resistance and efficiency performance of the inertial stages , he multilayer gauze stages , the two stages and three stages monisture separator . the numerical simulation results were verified 利用专门的实验风洞进行惯性级、网垫级、复合两级以及复合三级滤清器的阻力特性和效率特性的实验研究,并对数值模拟结果加以验证。
The results indicated that the efficiency of turbine was enhanced obviously , the efficiency curve overcasts the unchanged one completely . given the same output , the efficiency after retrofit design was higher than that before retrofit design , which was more distinct in high load area 结果表明,水轮机效率特性明显增加,其效率曲线完全包络改造前的效率以上区域,在发出相同效率的情况下,改型后效率均比改型前高,在高负荷区表现尤为明显。
Based on many references form civil and abroad , the author mainly studies the measurment theory and method for flux , raising height , axial power and rotational velocity . avoiding many complicated and intermediate courses for power wastage analysis , introduces the electric measurement and using efficiency curve of motor in measureing axial power , and satisfies the automatization of the device . the paper also provides a new method , inductive winding , in measuring rotational velocity of electromotor , supplys limitations of other method in measuring rotational velocity of electromotor in water , and meet practical needs in developing diving electric pump for corporation 作者在参阅大量国内外有关文献,着重探讨了水泵流量、扬程、轴功率、转速的测试原理和测试方法,提出了采用电测法并结合电机效率特性曲线测量水泵轴功率,从而避免了损耗分析法中大量复杂的中间过程,满足了试验装置的自动化测量要求;采用漏磁感应线圈法测量电机转速,弥补了其它转速测量方法对水下电机测试的局限性,适应了莱恩公司开发潜水电泵的实际需要。