1、

Automatic voltage regulator for constant current charging three-phase full wave constant voltage rectifier

恒流充电用自动调压器三相全波恒压整流器

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2、

If the phase change, while the amplitude is almost constant, tidal water level response to meet the transition state.

若相位变化,而振幅几乎不变,井水位潮汐响应满足过渡状态。

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3、

The sorption kinetics included the initial fast phase and the final slow phase. The first-order kinetic reaction and double constant rate equation could describe the sorption kinetics well.

吸附动力学过程包括吸附快反应阶段和慢反应阶段,可用动力学一级方程和双常数速率方程描述;

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4、

Through the reasonable selection of division electric current waveform of phase winding for stepper motor and motor drive IC, it presents and introduces the motor drive scheme of constant current and division based on microcomputer and the relative technique.

通过合理选择步进电机细分电流波形和驱动芯片,提出并介绍了单片机控制的细分恒流步进电机驱动方案及实现技术。

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5、

Single phase constant wattage heating cable is applied in freezing prevention and temperature maintenance of pipeline, instrument and valve.

单相恒功率电热带主要用于各种管道、仪表、罐体的防冻、保温,最高维持温度150℃。

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7、

A thermodynamic model with a modified ion activity coefficient was used to predict the gas-liquid phase equilibrium of the SO_2 absorbed by the sodium phosphate buffer solution and the phase equilibrium constant at the interface in the non-equilibrium stage model.

利用溶液电离平衡理论结合离子活度系数的修正,对磷酸钠溶液吸收模拟烟气中的SO2气液平衡进行预测,获得非平衡级模型中的界面气液平衡常数。

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8、

Measurement and correlation of vapor-liquid phase equilibrium constant for fuel fractions

燃料馏分油气-液相平衡常数的测定与关联

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9、

Nerve stimulator with single-phase constant-current pulse

单相恒流脉冲神经刺激器的设计

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10、

The dynamic reserve of the constant volume reservoir is calculated using material balance, and combined with elastic two-phase the formation pressure is calculated without well shut-in.

利用物质平衡法分区计算了定容气藏动态储量,并结合弹性二相法联立计算了不关井条件下的地层压力。

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12、

Constant amplitude loadings of different construction phase are established.

分施工阶段构造连接件常幅轴力谱。

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13、

Phased-array radiation lobe is superposed by isometric array element with constant amplitude.

等幅等距分布的辐射单元单独工作时形成的辐射场,叠加后可得到相控阵天线的阵列波瓣。

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14、

The phase structure, dielectric constant and dielectric loss were measured by X-ray diffraction spectrometer ( XRD) and LCZ impedance meter, respectively.

利用X射线衍射仪,测定了材料的物相结构,利用阻抗分析仪测定了不同频率和温度下材料的介电常数和介电损耗。

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15、

Constant-amplitude polynomial-phase signals ( PPSs) are characterized by their phase polynomial coefficients.

恒定幅度的多项式相位信号(PPS)由其相位多项式系数表征。

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16、

Gas phase synthesis of hydrogen iodide was taken for example. The example showed how to calculate extent of reaction from equilibrium constant and to calculate the heat capacities at constant pressure and constant volume.

以碘化氢气相合成反应为例,说明如何由化学反应的平衡常数计算平衡反应进度,进而计算定压热容和定容热容。

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17、

According to the characters of three-phase switched reluctance drive ( SRD), this paper presents a control scheme of voltage-speed regulating mode by PWM with three phase-single three beat and constant conduction angle.

本文以三相开关磁阻调速电动机(简称SRD)为研究对象,提出了一种三相单三拍固定导通角PWM调压调速控制方案。

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18、

Ten sulfo-group containing compound were tested whether they could be used as the phase transfer catalyst ( PT CS) for the electrophilic substitution in the solution of H2O/ CH3COONa-CH3COOH/ ClCH2Cl by measuring the coupling reaction rate constant.

选择了10个含磺酸基团的化合物作为相转移催化剂,测定其在H2O/CH2COOH-CH3COONa/ClCH2Cl体系中的亲电偶合反应速率常数。

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19、

The Effect of Integration Time Constant of One Cycle Controlled Three-Phase Power Factor Correction

单周控制三相PFC中积分时间常数的影响

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20、

Six-phase constant-current induction motor is a special motor designed as a load for current source inverter. It has a winding of 30 ° space phase band. This kind of motor can alleviate the harmonic problems caused by power supply of constant-current source.

六相恒流电机是一种作为二重化电流源型逆变器负载的特殊电机,采用了空间30°相带绕组,能较好的缓解由于恒流源供电而产生的谐波问题。

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