对窗

It gives performance comparison of instantaneous frequency estimation algorithms based on the peak of Wigner-Ville distribution and fourth-order polynomial Wiger-Ville distribution, analyzes the influence of window width to the estimation performance of instantaneous frequency estimation algorithms based on time-frequency distribution.

在不同飞行状态下，给出了基于Wigner-Ville分布、四阶多项式Wigner-Ville分布峰值的瞬时频率估计算法的性能对比，并分析了窗长对瞬时频率估计性能的影响。

The last type of special Window Form supported by Microsoft is a generic form of pop-up Window.

特别窗口中，微软支持的最后一类是对弹出窗口的一般形式。

Based on the characteristics of the manned spherical pressure hull in the submersible,the authors think that there are contact problems in the locations of the access hatch and three viewports.

基于对载人耐压球壳特点的分析，作者认为在出入舱口和三个观察窗部分严格来说是接触问题，应该采用接触有限元分析的方法而不是通过假定没有滑动采用传统的有限元分析。

Objective To study the window technique in evaluating the chronic obstructive emphysema and pulmonary residual volume in long - term smoker without symptoms.

目的探讨窗技术对慢性阻塞性肺气肿和无症状长期吸烟者肺残气量的评价。

Objective to explore the way of identify the size and evolving process of reversible damaged region and irreversible damaged region.

目的：对急性脑梗塞可逆性损伤区和不可逆性损伤区进行界定并观察其演变规律，为超急性期溶栓治疗的必要性及时间窗等问题提供影像学依据。

"This study is one of the first to support the hypothesis of a critical age window for the protective effect of estrogen on the nigrostriatal pathway in humans," Dr. Rocca's team points out.

该研究是第一支持雌激素对人黑质纹状体通路保护作用临界年龄窗假说的研究，"Rocca博士的团队指出。"

The results showed that the difference of location in gaps had evident effects on the seedling establishment of T.

结果表明：在林窗内不同位置对长苞铁杉幼苗建立有显著影响。

Finally an algorithm of adaptg image window is presented to realize the shoal identification.

引入了自适应图像窗的概念，提出了对鱼群的识别算法。

We compared various kinds of existing MC-CDMA systems, and chose one of them as our system model, which has greater spreading gain in each subchannel and the spectrums of adjacent subchannels overlay each other. This chosen system model has the advantages in respect of the system capacity, the length of PN code, and the ability in anti-multipath fading.

在多载波并行传输系统中，信道的畸变会引起各载波子信道之间的相互串扰和同一子信道上的码间干扰，通过对每一子信道上的信号波形加窗成形，可以有效地克服这两种干扰，这一结论在多载波并行传输的CDMA系统中同样成立。

Aim: To investigate time of sublethal cerebral ischemia and time of protective effects of CA1 neurons.

目的：探讨预缺血时间及间隔时间窗对CA1区锥体细胞的影响。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。