查询词典 surface area

Single factor experiments were done with the factors including the width of protrusion and the trolley's velocity, which showed that the surface frictional coefficient decreases with the width of protrusion increasing, and doesn't change with the trolley's velocity changing, which was consistent with the results of the orthogonal experiment. A theoretical model of the horizontal projection of a corrugated bionic surface's contact area was built, which showed that the contact area's horizontal projection decreases with width and interval increasing respectively and that the ratio of the contact area's horizontal projection and the vertical load decreases with the vertical load increasing. It indicated that the surface frictional coefficient decreases with the above three factors increasing respectively. Finite element modeling and analysis of interactions of a plate and soils was done using ANSYS, which showed that the plate frictional coefficient is little relative to soil elastic modulus and decreases with vertical surface pressure and that trolley's pull and vertical displacement of bionic surface's control pilot keep constant almost during the plate being pulled. Finite element modeling and analysis of interactions of a corrugated bionic surface and soils was done using ANSYS, which showed that surface frictional coefficient is little relative to soil elastic modulus and decreases with bionic surface's structural parameters and vertical pressure increasing. However, the three factors all didn't affect the surface frictional coefficient remarkably on the condition of 90% dependability. For the first time, bionic surfaces were applied to screw piles, which formed bionic screw piles, and the contrast experiments showed the bionic screw pile had certain resistance-decreasing effects.

建立了波纹型仿生曲面与土壤的接触面积的水平投影的理论模型，表明接触面积的水平投影A随着波纹型仿生曲面突起宽度、两相邻突起间距的增大而减小，接触面积的水平投影与波纹型仿生曲面表面垂直载荷之比随着波纹型仿生曲面表面垂直载荷的增大而减小，进而得出仿生曲面摩擦系数随着波纹型仿生曲面突起宽度、两相邻突起间距以及表面垂直载荷的增大而减小；利用ANSYS软件对平板与土壤的相互作用进行了有限元建模与分析，表明平板摩擦系数与土壤弹性模量关系不大，而随着表面垂直载荷的增大而减小；平板牵引过程中台车牵引力和仿生曲面控制节点垂直方向位移基本保持不变；利用ANSYS软件对波纹型仿生曲面与土壤的相互作用进行了有限元建模与分析，表明波纹型仿生曲面系数在一定范围内基本不受土壤弹性模量的影响，随着波纹型仿生曲面突起宽度、两相邻突起间距以及表面垂直载荷的增大而减小，但在可信度为90％的前提下，三个因素影响都不显著；首次将波纹型仿生曲面应用于与土壤作用方式以挤压为主的螺旋桩，形成仿生螺旋桩，并与普通螺旋桩进行了沉桩对比试验，表明波纹型仿生曲面应用于螺旋桩桩体表面具有明显的降阻作用。

Montmorillonite is a large surface area and wide distribution clay mineral, it is also one of main activated components in soil.

蒙脱石矿物是土壤中比表面积大、分布很广的一种粘土矿物，也是土壤中主要的活性组分之一。

Human body ; body surface area ; calculating model ; variance analysis ; basal metabolism

人体；体表面积；计算模型；方差分析；基础代谢

Of the importance of the Square of 8 and 9 grid relationship, Schwaller says, These two lengths, 8 and 9, are related to musical harmony. This is the tone in music and also the ratio between the diameter of a disk and the side of a square of the same surface area. The sum of 8 and 9 is 17, the famous number of Jabir [the famous Arabic alchemist of the 8th century C.E.].

对8方图和9方图的重要关系，古埃及考古学家，金字塔研究专家史沃乐先生说：这两个长度，8和9，和音律和谐规律是相关联的，它们是音乐中的调和与增强，也是一个圆的直径和等面积直角方形的边长的比率。8和9的和等于17，它是一个著名的阿拉伯术士在公元8世纪所使用的一个著名的数字。

It aims to provide all common prescribing functions on a single page. Included functions are ideal body weight, body surface area, creatinine clearance, and dosing by weight, BSA, and Calvert.

其目标是在一个单独页提供所有的通用规定功能，包括：理想的体重、体表面积、肌氨酸清除，以及有体重、BSA和Calvert的给定剂量。

The approximate surface area was estimated at 527,970 km2 (203,750 square miles) including the Socotra archipelago extending between 52o - 54oE...

其陆地面积包括socotra archipelago(位于东经520-54oE和北纬 12o-13o 45)在内为527，970 km2(203，750平方英里)。

Olive trees were cultivated on a quarter of the surface area of the Pylos region.

例如，在公元前4世纪，皮勒斯四分之一的土地种植了橄榄树。

The number one appellation in France by surface area and by volume, the Bordeaux Appellation is produced all over the department of the Gironde using the noble grape varieties: Cabernet Sauvignon, Cabernet Franc and Merlot.

法国首屈一指的产区，因产区面积和产量而闻名。产区依纪龙德河河岸而立，造就了这里得天独厚的风土条件。这里广泛种植着赤霞珠、品丽珠和梅洛这三种贵族葡萄。

In this thesis, Water Solubility, 1-Octanol/water Partition Coefficient, molecular Total Surface Area, Aqueous Activity Coefficient, Henry Law's Constant and gas chromatogram relative retention times for biphenyl and its 209 chlorinated congeners were studies with holographic QSAR techniques and highly predictive QSAR models were developed. An internal validation (cross-validation) and external validation were performed to evaluate the predictivity and robustness of the HQSAR models. Based on these highly predictive QSARs, the corresponding data of 5 properties of all these pollutants were presented.

应用简化的响应曲面分析来建立显著的预测模型，必须要考虑到空间立体因素的影响；基于分子模拟技术的三维QSAR技术能够建立显著的预测模型，并且有利于对毒性机理的理解；而基于分子全息的QSAR技术建立了具有高度预测能力的QSAR模型，组内交叉验证和组外预测等方法证明模型具有高度的预测能力和稳健性，可以对硝基芳烃这一类分子结构、体内代谢过程和致毒机理都很复杂的污染物进行定量预测。

The article introduced the measuring technique of the grain size of ceramic alpha alumina, including electronic microscope, Laue X-ray diffraction, nitrogen absorption specific surface area, infrared spectra and grinding method.

本文介绍了电子显微镜、X射线衍射、氮吸附小比表面法、红外光谱结构分析、研磨法等用于陶瓷氧化铝晶粒度测定的情况，通过对比，指出了电子显微镜能够真实地反映微观世界，是多种分析方法的基

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。