间距

One would expect a high correlation of galaxies at small separation distances (due to the clumpy nature of galaxy formation) and a low correlation at large differences.

人们期望星系在小的间距上有强的相关性(由于星系形成的结团性质)而在大尺度的距离上相关性则比较低。

Several cluster validity measures have been proposed for confirming the optimal k value. However, the existing methods may not work well for the following two kinds of data sets: the data set containing cluster groups with different densities and the data set in which the cluster groups are extremely close to each other.

目前，已经提出了许多确定最佳k值的聚类有效性方法，但这些方法都不能很好地处理两种数据集：类密度不同的数据集和类间距比较小的数据集。

After the vanadium content in PD3 steel was more than 0.33%, vanadium carbides would precipitate a lot, and make the lamellar gap sizes of pearlite abnormally coarsen, it was beneficial to toughness of material.

当PD3钢中钒含量增加到0.33%时，碳化钒将大量析出，并使珠光体片间距反常粗化，对韧性不利。

Considering that both the solution of the structure natural vibration frequency and mode as well as its elastic stability coefficient can transform into eigenvalue problem of the structure dynamic equilibrium equation, taking the fundamental frequency and the elastic stability coefficient of the structure as the evaluation criteria, the possible arrangements of Mi-brace and X-brace for halfthrough CFST arch bridge with 360 m span were comparatively analyzed, and the advices for the reasonable space of the Mibrace and the X-brace were advanced.

鉴于结构自振频率、振型及弹性稳定系数的求解均可转化为源自结构动力平衡方程的特征值问题，先以结构基频及弹性稳定系数为衡量标准，对一座360 m跨的中承式钢管混凝土拱桥可能的米字撑及X撑布置方案进行了分析对比，并据此提出了X撑及米字撑的合理间距。

The test results indicate that the Colburn factor and the friction factor increase with the decrease of space of fins.

结果表明，换热和摩擦因子都随着翅片间距的减小而增大。

The heat transfer coefficients and pressure drop data for different fin pitch F p and fin height F h were reported in terms of Colburn j -factor and Fanning friction factor f , as function of Re Lp .

在风洞试验台上对20种不同结构参数的扁管百叶窗翅片进行了传热和流动阻力性能试验，分析比较了翅片间距和翅片高度对其表面对流换热系数和空气阻力性能的影响。

The effects of space of fins, number of tube rows and relative humidity of incoming air on airside performance of wavy fin with hydrophilic coating under dehumidifying conditions were experimentally explored for seven wavy fin-and-tube heat exchangers with hydrophilic coating. The Colburn factor and the Fanning friction were applied to describe airside heat transfer and friction characteristics, respectively.

为了确定翅片间距、管排数和入口空气相对湿度等参数对析湿工况下带亲水层波纹翅片空气侧特性的影响，对7个带亲水层的波纹翅片管换热器进行了试验研究，并分别以Colburn换热因子和Fanning摩擦因子来反映空气侧换热和压降特性。

AbstractThe effects of space of fins, number of tube rows and relative humidity of incoming air on airside performance of wavy fin with hydrophilic coating under dehumidifying conditions were experimentally explored for seven wavy fin-and-tube heat exchangers with hydrophilic coating. The Colburn factor and the Fanning friction were applied to describe airside heat transfer and friction characteristics, respectively.

摘 要：为了确定翅片间距、管排数和入口空气相对湿度等参数对析湿工况下带亲水层波纹翅片空气侧特性的影响，对7个带亲水层的波纹翅片管换热器进行了试验研究，并分别以Colburn换热因子和Fanning摩擦因子来反映空气侧换热和压降特性。

The effects of space of finsnumber of tube rows and relative humidity of incoming air on airside performance of wavy fin with hydrophilic coating under dehumidifying conditions were experimentally explored for seven wavy fin-and-tube heat exchangers with hydrophilic coating. The Colburn factor and the Fanning friction were applied to describe airside heat transfer and friction characteristicsrespectively.

为了确定翅片间距、管排数和入口空气相对湿度等参数对析湿工况下带亲水层波纹翅片空气侧特性的影响，对7个带亲水层的波纹翅片管换热器进行了试验研究，并分别以Colburn换热因子和Fanning摩擦因子来反映空气侧换热和压降特性。

It is concluded that the method of lime-soil compaction pile to treat collapsible loess can improve the engineering properties of soils, eliminate collapsibility and enhance the bearing capacity of foundation, which can be changed with the space between piles.

试验结果表明，利用灰土挤密桩对湿陷性黄土地基进行处理，能有效地改善桩间土的物理力学特性，并随布桩间距的不同而得到不同的挤密效果，消除黄土的湿陷性，较大幅度地提高地基承载力。

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。