查询词典 impedance

Plethysmography ; impedance ; coronary heart disease ; contractile function ; left ventricle ; Heather index

体积描记术；阻抗；冠心病；左心室；收缩功能； Heather指数

Impedance plethysmography ; Deep vein thrombosis ; Pulmonary embolism

阻抗容积描记法；深静脉阻塞；肺栓塞

Millimeter wave circularly polarized microstrip antenna has the advantage of low profile,simple configuration,but commonly it has narrow impedance bandwidth and axial ratio bandwidth.

毫米波圆极化微带天线具有体积小、结构简单等优点，但是同时也存在阻抗带宽和轴比带宽相对较小的缺点。

Asiatic hybrid 'Pollyanna' was used as the experimental material, and the bulbs were dipped into the hot water at 45t for different times of 0, 10, 20, 30, 40 and 50 mm. After planting, the physiological indices and the electrical impedance spectroscopy parameters of young plants under heat stress at 38℃ were studied.

以亚洲百合'多安娜'为试材，研究种球在45℃下，经历不同时问梯度(0、10、20、30、40、50min)温汤处理后，其幼苗抗性生理指标及电阻抗图谱参数对38℃胁迫的反应。

And based on the analysis on the relationship of the positive and the negative sequence impedance,also the positive and negative fault component current under simple and duplicate fault conditions,a cross-country fault identifier is proposed in this paper.

同时通过对线路发生单纯性故障与跨线故障情况下的正、负序故障分量阻抗关系和正、负序故障分量电流幅值关系的分析，提出了一种判别电力系统发生跨线故障的判别元件。

Based on the analysis on the relationship of the positive and the negative sequence impedance, also the positive and negative fault component current under simple and duplicate fault conditions, a cross-country fault identifier is proposed.

通过对线路发生单纯性故障与跨线故障情况下的正、负序故障分量阻抗关系和正、负序故障分量电流幅值关系的分析，提出了一种判别电力系统发生跨线故障的判别元件。

Based on the analysis on the relationship of the positive and the negative sequence impedance, also the positive and negative fault component current under simple and duplicate fault conditions, a cross-country fault identifier is proposed in this paper.

同杆并架输电线路故障的主要特点是有跨线故障，而当系统发生跨线故障时如果没有正确识别出来，那么保护就很有可能无选择性同时切除两条线路，从而对系统的安全稳定运行造成恶劣影响。

Roll press leads to faster electrochemical kinetic properties of LiCoO〓 electrode, lower impedance, and higher specific capacity.

辊压使LiCoO〓电极获得了较快的电化学动力学性能、较低的阻抗和较高的比容量。

Pn 2.3.3 Standing Waves or Resonances When a free progressive wave encounters a sharp change in impedance such as at an air-hardwall boundary, and if the angle of incidence is normal, then the reflected wave travels back along the original path of propagation with a 360 ° change in phase.

pn 2.3.3 驻波和共振当自由行波遇到波阻突变时，比如遇到气壁边界，若入射角度垂直于边界，那么反射波会沿原路径返回，相位变化360°。

The transfer function of the LLC resonant converter can be obtained by using the circuit impedance, ratio of resonant inductance, and quality factor. With proper selection of the resonant tank and modulation of the operation switching frequency, the proposed circuit can achieve zero voltage switching, stabilize the output voltage, and then reduce the switching loss.

其后级之半桥LLC谐振式转换器藉由推导电路阻抗、谐振电感比例值与品质因数得到转移函数，以及利用适当的谐振电路的设计与切换频率的调变的方式达到输出电压稳定，并且令功率开关具有零电压切换之功用，以降低功率开关的切换损失。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。