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The calculation of relative variation of the negative feedback amplifier by differential method results in some errors under certain condition, so there was certain limitation in this method.
中文意思:
摘要利用求微分的方法计算负反馈放大器增益的相对变化量,由于在一定的条件下计算出的结果存在一定误差,因而使用这种方法具有一定的局限性。


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The calculation method of design tide levels based on a numerical model of tidal current was expounded, was verified by means of real data, and was applied to a real engineering. 文章探讨了确定深水筑港设计潮位的一种方法,阐述了基于潮流数学模型的设计潮位推算方法,用实际资料验证了该方法。
The calculation method of technical parameters of maximum output power, the short time power and continued power (equivalent heating) in electric braking are derived from analyzing the relationship of maximum regenerative power with resistance value of gr 通过分析列车电制动时的最大再生功率与电阻吸收装置的电阻值、电制动时刻牵引供电系统的模型、列车电流、网压降之间的关系,导出了列车电制动时最大输出功率、地面电阻吸收装置的短时功率和持续(等效发热)功率等技术参数的计算方法。
The calculation method of temporary load of the continuous carrier bar with different distance span was discussed.The length calculation in design of the pressure bearing bar with the different distance span which has to be worked out can be done by means 讨论了不跨连续压杆的临时荷载计算方法,应用该方法可以解决不跨受压杆件设计中必须解决的长度计算问题,从而使施工结构设计更为准确简便.
The calculation model for the instantaneous and average efficiencies in the pushing course of disk cam mechanism with translating flat-bottomed follower has been established and it has a strong suitability. 摘要建立了直动平底从动件盘形凸轮机构推程瞬时效率及平均效率的计算模型,适用性强。
The calculation of chaos and fractal characteristic parameter, the correlation, is studied. 摘要研究了混沌与分形的特征参数―关联维数的计算方法和参数的选择。
The calculation of relative variation of the negative feedback amplifier by differential method results in some errors under certain condition, so there was certain limitation in this method. 摘要利用求微分的方法计算负反馈放大器增益的相对变化量,由于在一定的条件下计算出的结果存在一定误差,因而使用这种方法具有一定的局限性。
The calculation of sea/land clutter power to airborne PD early warning radar is a hot and difficult problem of EW simulation. 机载脉冲多普勒预警雷达海地杂波功率计算是电子战仿真研究的一个热点和难点问题。
The calculation of stagnation point position of straight pipeline section with both movable ends and L-type pipeline section with bend at one end and bellows type expansion joint at other end is discussed. 摘要探讨了两侧为活动端的直管段及一侧活动端为弯头,而另一侧活动端为波纹管补偿器的水平转角管段驻点位置的计算。
The calculation of the area per customer of the store business hall is one of the main contents of the fire protection and evacuation design. 摘要商店营业厅的顾客人均使用面积的计算是消防疏散设计的重要内容之一。
The calculation of the method is simple and the method is suitable for the isolated system with the double-linear resilience curve. 该方法的优点是计算简单且适用于双线性隔震系统。
The calculation of the operational reliability is applied to Shanghai Rail Transit Line 1, Line 2 and Line 3. 应用该方法计算了上海轨道交通1、2、3号线的可靠性指标。
 
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