变宽

We use integrated chip TL494 are the master control chips, by the MOSFET tube constitution inversion electric circuit, has realized the contravariant system's pulse-duration modulation.

我们采用集成芯片TL494为主控芯片，以MOSFET管构成逆变电路，实现了逆变系统的脉宽调制。

The power supply can acquire real time online voltage signal of electric network and input into inverting system; generate synchronous signal and effective value of amplitude signal, then become SPWM pulse by wave generating chip SA4828. High degree sinus and good anti-disturbance performed power supply inverting can be also realized.

该电源可以在线实时采集电网电压送入逆变系统，实时产生同步信号和幅值有效值信号，通过波形产生芯片SA4828实时产生和采样电压同频同步且幅值可调的正弦脉宽调制脉冲，并采用开关线性复合功率变换技术，实现高正弦度和强抗负载扰动性能的电源逆变。

Our finding shows that the light curve structure is correlated to the GRB duration.

这表明GRB的光变曲线结构与其持续时间有密切的关系，光变曲线的FWHM越宽，则持续时标越长。

Because of each Polyalcohol material has its own phasechange temperature, for getting widely used changing temperature scope, can press differentcomparison two kinds of polyalcohols as a binary system.

由于每一种多元醇都有固定的固-固相变温度，为得到较宽相变温度范围的贮热材料，可以将两种多元醇按不同比例混合组成多元醇二元体系。

Fundamental frequency is either equal to the switching frequency of the inverter(square-wave and PWM inverter)or ist simple fraction(1/3,1/5,and so) such as in Multiple PWM or sine PWM inverters.

基本频率是逆变器在相等的开关频率，或者方波是简单的分数(1 / 3，因此，1 / 5)，如在多个PWM脉宽调制逆变器或正弦量。

"Tush, child, tush," said the old Frog,"that was only Farmer White's Ox. It isn't so big either; he may be a little bit taller than I, but I could easily make myself quite as broad; just you see." So he blew himself out, and blew himself out, and blew himself out.

"切！"老青蛙不屑地说："孩子，那只不过是农夫怀特家的公牛，它也没有那么大，它或许比我高那么一点点，但是我很容易就能变得和他一样宽，你看着，"青蛙爸爸开始吹起他的肚皮，一点点得变大，"它像这么大吗？"

In comparison with the control group,the blood flow,survival length and the length to width ratio of the expanded flap in the experimental group increased statistically.The immediate retraction ratio of the flap decreased significantly.The epidermis was thicker while the dermis was not significant different from the control.The panniculus carnosus was significant thinner in the expanded group than the unexpanded group.The deep connective tissue was statistically thinner in the group using the new type expander.

结果 双囊扩张器能有效地将药物导入到扩张囊周围的组织中发挥药理作用，使扩张后的皮瓣血流量较常规扩张组显著提高，成活长度、长宽比例也明显增加，回缩率明显降低，表皮明显增厚，包膜较其他各组明显变薄，真皮在各扩张组和未扩张组相比无明显变化，但肉膜层扩张组较未扩张组明显变薄。

Based on this model, interaction between the parallel grid-connected inverters is analyzed and the influence on circulating current when it is adopted zero vector with space vector pulse width modulation is also analysed.

在这模型的基础上，分析并网逆变器并联运行时的相互影响；分析了并网逆变器采用间矢量脉宽调制算法时零矢量对环流的影响。

For sample with longer GI time, which resulting in the better uniformity of this sample, the unusual decrease of FWHM is not observed in the measurement of the temperature dependent PL spectra. Considering the better uniformity of the sample, the effect of carrier redistribution on PL spectra is unapparent. Therefore, the FWHM increases gradually with temperature.

对於成长中断时间较长的样品来讲，由於其均匀度较佳，所以在变温的光激光谱量测中，我们并未发现半高宽随温度上升而有下降的趋势，这是因为载子重新分布效应对一个均匀度佳的样品来讲，其显示出来的效果并不明显，所以我们只能观察到电子与声子散射效应所表现出来的现象，也就是半高宽随温度上升而缓慢增加。

I also found that broad Balmer emission lines probably have gravtitational redshifts. I tried to explain in the context of binry black hole model the quasi-periodic optical darkening and brightening, the H_βdouble peaked profile, the gravitational redshift of H_βemission line,and the wiggling of jet.

我注意到宽发射线H_β有双峰结构，并对双峰结构尝试给出了合理的解释，我还注意到巴耳末宽发射线可能存在引力红移，并尝试在双黑洞模型下来解释准周期性光学变暗和爆发、H_β双峰结构、引力红移和喷流摆动。

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。