查询词典 Poisson ratio

Difference of apeak distribution of dry weight of root in different density treatments. The root shoot ratio was increased gradually during maize growth process, Tendency of root - shoot ratio was displayed slow-fast-slow regular pattern.

根系干重在土壤中的水平分布情况为，不同密度处理根量均呈现以植株中心由内向外逐渐减少的变化。

It was found that for large aperture ratios (the ratio of focal length of the primary to its aperture, as the f-ratio in modern cameras for instance), f/10 or more, the difference between spherical and paraboloidal mirrors was negligible in the performance of the telescope.

结果发现，大口径的比例（比例焦距初级到其孔径，由于架F -比率在现代相机举例来说）， f/10或更长时间，之间的差别球面和抛物面反射镜是微不足道的，在表现望远镜。

The core technology is reasonable to determine their draft tube diameter and disc bottom outlet aperture ratio, the ratio determines the performance of disc movement and motion energy.

电动截止阀其核心技术是合理确定其导流管直径与阀瓣底孔孔径的比值，该比值决定了阀瓣的动作性能和动作能耗。

Measures such as area ratio (the area under the aperture opening divided by the surface area of the aperture wall) and aspect ratio (aperture width divided by stencil thickness) can be used to determine appropriate aperture sizes.

因此，严格控制孔的质量是钢网成功设计的关键。特别是小量沉积材料要求精度高时的高精度要求。

Furthermore, thickness of the external light shielding sheet and height of a pattern unit have a given ratio in order to properly secure an aperture ratio of the external light shielding sheet.

最大限度地吸收及遮挡从外部入射的光的外光遮挡薄片附着在面板的前面，从而能接近原色地实现黑影像，因此具有改善明室对比度的效果。

If a tension overload pluses constant amplitude spectrum, the result shows that the tension overload prolongs the fatigue life, and the bigger overload ratio is, the more apparent the effect of magnitude ratio is, and the effect of prolonging life is decreased with the corrosion extent increasing.

实验结果表明，在等幅载荷谱前加上一个拉伸超载，并定义该超载值与等幅载荷谱的峰值比为超载比，那么超载比越大，超载对无裂纹试件的增益作用越明显，但在超载比一定的情况下，超载的增益作用由于腐蚀程度的增加而降低。

The ratio of acidic/basic amino acids positively correlated with the ratio of calcite/aragonite in NS.

NS贝壳种酸性/碱性氨基酸的比例与方解石/文石的比例显著正相关（r=0.8820，P=0.0086）。

The ash circulating ratio is not an arbitrary value and shall be set on basis of separator capture efficiency and fly ash ratio.

必须指出，灰循环倍率不是人为选取的，它取决于分离器效率和飞灰份额。

This paper used the ratio of arithmetic to geometric mean to replace the coefficient of variation and applied into the enhanced adaptive filters. It proposed the novel class of adaptive filters, which were based on the ratio of arithmetic to geometric mean and were designed for speckle.

为此，将算术—几何均值比引入增强型的Lee和Frost等滤波器中，并取代变差系数在这些滤波器中的作用，推导得出一类新的基于算术—几何均值比的自适应斑点噪声滤波器。

Weight ratio of water to oil ; weight ratio of catalyst to oil ; aromatization ; FCC gasoline

水油比；剂油比；芳构化；催化裂化汽油

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。