查询词典 phase

The phase switches of the proposed SRM converter turn on in zero voltage switchingmode by making use of a kind of parallel quasi resonant DC link circuit,and turn off in ZVS mode by adding a shunt-wound capacitance to every phase switch.

电路采用并联型准谐振直流环节为SRM相开关开通提供零电压条件，给相开关并联电容器则保证了相开关的零电压关断。

The method of multilevel parallel phase modulation was proposed, which means two parallel multilevel phase shift keying signals were transmitted with one frequency at the same symbol period.

提出了高阶并行相位调制的方法，即在同一调制符号周期，使用同一频率、并行发送2路携带不同信息的高阶相位调制信号。

Further,the effect of the phase space parameter on the correlation dimension by phase space parameter is studied.

进一步，研究了相空间重构参数对关联维数准确度的影响。

According to the characteristic that the definition point of the Q matrix of wave front is always located on the extremum point on the axis of the beam, a three-dimensional formula for the rectificative factor of phase in complex ray paraxial approximation is proposed, which calculates the rectificative factor of phase directly without considering the calculation of the main directions and curvatures and the rotation of the coordinates, thus simplifying the paraxial approximation calculation by the complex ray expansion method.

根据波前Q矩阵的定义点总位于波束轴上极值点的特点，提出了三维复射线近轴近似相位校正因子计算公式。该公式不用考虑主方向和主曲率的计算和坐标旋转，直接计算相位校正因子，从而简化了复射线展开法的近轴近似计算。

Methods The left ventricular diastolic function,the blood speed during quick filling phaseof left ventricular of the mitral valve orifice,the peak value of the late phase of left ventricular diastolic pariod;E/A ratio,the time for isovolumetric relaxation phase of left ventricular,the reducel time of peak E,and the distance between peak E of mitral valve and intervertricular septum of left ventricular were measured respectively.

摘要］ 目的应用彩色多普勒超声心动图测定冠心病左室舒张功能，临床提供可靠的诊断及治疗依据方法分别测定冠心病组及对照组的左室舒张功能：二尖瓣口左室快速充盈峰值血流速度即E峰；左室舒张晚期峰值速度即A峰；E/A值，左室等容舒张时间，E峰减速时间，二尖瓣叶E峰与室间隔左室面的距离。

Then, base on the equivalent circuit model for cascaded coupled resonator filter, the method for measuring or computing the phase of the reflection coefficient of short-circuit terminated networks and synthesizeing all the inter-resonator couplings and resonant frequencies of the filters to be tuned is studied intensively. The phase loading effect is removed and the tuning steps are analyzed. The method based on the partial fraction expansions of admittance matrix is used to synthesize coupling matrix of the filters under tuning.

然后，通过分析级联耦合滤波器的等效电路模型，着重研究了利用测量或计算终端短路网络的反射参数的相位来综合出待调级联耦合滤波器各个腔体的谐振频率和腔体间的耦合系数的方法，并且消除了端口相位加载的影响，给出了具体的调试步骤；接着利用导纳矩阵部分分式的展开来求得待调滤波器耦合矩阵，着重研究了消除端口相位加载的方法。

Since the mid-7th century, the Frankish kingdom split into three areas, and each with a palace phase, power and .687, the Aosta Australasian region the Palace Pepin II, the palace became the only phase and the actual ruler of .751 years, his grandson,"Pepin Dwarfs," usurped the throne, the establishment of Carolingian .

自7世纪中叶起，法兰克王国分裂为三个地区，并各设一名宫相，掌握实权。687年，奥斯达拉西亚地区宫相丕平二世成为全国唯一的宫相和实际的统治者。751年，其孙"矮子丕平"篡位，建立加洛林王朝。

Compared to the ordinary PLL circuits, it can endure the short time appearance that occurs once in a horizontal line of the sync signal. It can adapt to the phase alternation character of a PAL video signal and recognize the phase alternation line. The local color sub-carrier can be generated for synchronous demodulation by the circuit.

该电路使用了全数字锁相环对色同步信号进行跟踪，与普通锁相环电路相比，它不仅能适应制视频信号中色同步信号每行出现一次和PAL制信号逐行倒相的特性，还能识别倒相开关信号，准确地产生本地色副载波用于同步解调。

Phase Angle Phase angle refers to the relation between two sine waves which do not pass through zero at the same time.

相角 相角指的是两个不同时经过零点的正弦波之间的关系。

If the product effect is too nigh no phase angle is identified the phase angle setting remains unchanged .

这是一套。如果产品没有效果也近了相位角是确定的相位角设置保持不变。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。