Backflow preventers must be installed in high-visibility locations in order to allow for immediate notice of telltale discharge or other malfunction. 防回流阀必须安装在清晰可见的位置,以便能够立即注意到排放报警或其他故障。
The voltage and current property of pulse corona discharge system are analyzed theoretically in order to provide the gist for the practical use of pulse corona discharge system. The theoretical formulas of pulse discharge voltage, discharge current and pulse rise time are deduced. 对脉冲电晕放电系统的伏安特性进行了理论分析,以便为脉冲放电系统的实际应用提供依据.推导出了脉冲放电电压、放电电流和脉冲上升时间的理论公式;
In order to improve the accuracy of the simulation, one nonlinear dynamic simulative model for biaxial gas turbine is proposed by using calculation method of variable specific heat, in which the variation of gas-oil ratio and discharge pressure were considered, based on Matlab/ Simulink. 为了提高燃气轮机仿真的精度,采用变比热容的计算方法,并考虑了油气比和排压的变化,基于Matlab/Simulink软件建立了一种非线性的考虑容积惯性的双轴燃气轮机动态仿真模型。
In order to compute the impulse grounding resistance of extended grounding electrode accurately, using a nonlinear differential circuit model, this paper introduces a method for computing the impulse grounding resistance based on the spark discharge characteristic of the earth. 为较准确解决伸长接地体冲击接地电阻的计算问题,采用非线性差分电路模型,导出了一种考虑土壤火花放电特性的伸长接地体冲击接地电阻的计算方法。
In order to search for the measure to increase the energy dissipation ratio of stepped spillways, some main influence factors on the energy dissipation ratio of stepped spillways, such as unit discharge, dam slope, height of step and so on, have been studied. 为了探求提高阶梯溢流坝消能率的措施,本文首次采用紊流数值模拟方法,对影响阶梯溢流坝消能率的一些主要因素,如单宽流量、坝坡、阶梯高度等进行研究。
In order to design a new type of quick charger for NiMH battery, the new method of pulse charge discharge was adopted after studying the charge process and analyzing the NiMH battery charge characteristics. 为了设计一种新型NiMH电池快速充电器,研究了NiMH电池充电过程中的电化学反应以及电池的充电特性,确定采用一种新型的快速充电方法&脉冲充放电方法。