A four phase reactor-separator is proposed for fermentations characterized by a volatile product and nonvolatile substrate.
设计了一种以挥发性产物和非挥发性底物为特征的四相反应器——分离器。
The training modules were composed by four phase program. After 5 years of practical application, the system achieved remarkable results.
训练模块由四阶段课程组成。经过5年的实际应用，该体系取得了显著的效果。
Finally, we developed a four-phase plan as a road map for how financial services companies could adopt an integrated approach to identifying, quantifying, and managing risk.
最后，我们整理出一个四阶段计划，作为指导金融服务公司如何通过采用整合方式来判断，量化及控制风险的导引图。
The reliability and transient stability of the transmission system may be improved, because two adjacent phase conductors of four-phase transmission lines can be operable.
四相线路可以采用两相邻相运行，能提高输电系统运行的可靠性与暂态稳定性。
The transformer may be applicable to either four- phase transmission system or AT power supply system in electric railways.
三相变四相电力变压器是一种新型平衡变压器，由此可以实现四相输电方式，也可以用于电气化铁道的AT供电方式。
Four-phase transmission system fault analysis is one of the important studies on four-phase transmission system theory.
四相输电系统的故障分析，是研究四相输电理论的一项重要内容。
The invention relates to a four-phase (8/6 pole) switch magnetic resistance motor control device of a single current sensor and a realized method thereof.
本发明涉及一种单电流传感器的四相（8/6极）开关磁阻电机控制装置及其实现 方法。
Because of the better structure and balance characteristic compared with other transformer used in electric railway, the three-phase to four-phase transformer can apply to AT power supply system.
与其它牵引变压器相比，三相变四相变压器具有较好的结构和平衡特性，可以用于电气化铁路AT供电。
Four-phase overhead transmission lines have special advantages in high phase order transmission lines, because of the good symmetry and the simple structure of its lines and poles.
四相架空输电线路对称性好，线路及杆塔结构简单，在多相输电线路中具有独特的优势。
This paper presents four-phase transmission harmonic current detecting method based on instantaneous reactive power theory.
该文提出了基于瞬时无功功率理论的四相输电谐波电流检测方法。
Because four-phase transmission system has the advantages of good symmetry and simple structure of its lines and poles, it has obvious superiority over other multi-phase power transmission system.
四相架空输电线路对称性好，线路及杆塔结构简单，在多相输电线路中具有独特的优势。
Four-phase control method has been introduced particularly and three basic principle expressions are proved.
其中重点介绍了四相控制法，并且详细推导证明了三个基本公式。
Moreover, detailed numerical result is presented, particularly for a four-phase, namely quadrature oscillator, which is in accordance with the proposed theoretical analysis.
此外，对于四相位，即正交相位，的情况，也给出了具体的数值结果，与前面的理论分析相一致。
The digital comparator designed with FPGA generates several PWM current waveform synchronously, to realize the step angles even division control for four-phase stepping motor.
并通过FPGA设计的数字比较器，同步产生多路PWM电流波形，实现对四相步进电动机转角进行均匀细分控制。
The magnitude comparator designed with FPGA generates several PWM current waveform synchronously, to realize the step angles even division control for four-phase stepping motor.
并通过FPGA设计的数字比较器，同步产生多路PWM电流波形，实现对四相步进电动机转角进行均匀细分控制。
Of course there may be many individual variations on the basic theme, but most sophisticated companies generally follow this four-phase process.
当然不同的组织绩效评估过程也会不同，但是多数成熟的组织通常都会遵循这个四阶段模式。
Of course there may be many individual variations on the basic theme, but most sophisticated companies generally follow this four-phase process.
当然不同的组织绩效评估过程也会不同，但是多数成熟的组织通常都会遵循这个四阶段模式。
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