孔洞

Another tale focuses on the potholes near the falls, which are some of the finest examples of pothole stone formations in this section of the country.

另一个故事讲的是那些瀑布附近的好几个岩石孔洞，这些孔洞是滴水穿石的最好例证。

The gel dynamics experiments showed that the gel formation law was similar with the other polymer systems, which wasrelated with dense surface under the soft coagulating condition and the thickening gel; the square of gel thickness was linear with coagulation time. The qualitative analysis of the surface puckers of fibers spun from wet spinning and dry-jet wet spinning was made. The positions where the die swell appeared were not the same and the die swell appeared at the air gap where the fiber would markedly been elongated and vary little in the coagulant, thus the surface of fiber spun from dry-jet wet spinning was more smooth. The radial component concentration gradient was responsible for the radial structure of PAN fiber spun from dry-jet wet spinning. The thicker surface with microvoid structure of

对湿纺和干湿纺进行比较表层沟槽的产生进行定性分析，原因在于孔口胀大区域出现在不同位置，在干湿纺中，溶液的孔口胀大出现在空气层，并在该区完成大部分形变，进入凝固浴后形变很小，纤维表面较为光滑；干湿纺PAN纤维径向结构存在差异，这与丝条内组分由于双扩散进行导致径向上存在浓度差异直接相关；凝固强度较大的体系，可以获得厚度较大且孔结构尺寸较小的皮层；含较少缠结的PAN原液在纤维成形后截面很圆整，但原液缠结浓度增大时成形后圆整度下降；PAN纤维成形是一个远离平衡的过程，凝固作用缓和的体系可以使成形过程靠近平衡，可获得更大尺寸的孔洞结构；原液中少量的非溶剂添加剂显著改变纤维径向结构，可获得孔洞尺寸更小和更为均一的径向结构，这与径向浓度差异的减小、分相时间的集中相关；PAN原液的成形纤维表面依赖于凝固强度；由AFM对相近凝固条件下成形的PAN膜进下

A parametric study is made based on the solutions to illustrate the influence of the minimum quality factor concerning the creep and relaxation behavior of porous medium, the permeability parameter concerning the partial permeable behavior of boundary, and relative rigidity of liner and medium on the frequency response of the cavity.

并进行了算例分析，讨论了反映介质黏弹性性质的最小质量因子，反映孔洞边界半透水性质的渗透性参数及衬砌和介质的相对刚度对问题的影响。分析结果表明：以上参数对圆柱孔洞的频域响应有很大影响。

When closed-depending on the type of ram selected-they will seal around the drillpipe, seal off the open hole, or in emergencies shear the drillpipe and seai off the hole, The basic concept of the ram BOP has not changed in 50 years.

当关闭时-取决于被选择的闸板的类型-它们会封闭钻井管，封锁开放的孔洞，或者在紧急情况下切断钻井管并封住孔洞。闸板防喷器的基本概念在五十年内没有改变过。

This paper attempts to develop a method to analyse void nucleation size due to its importance on spallation damage.

同时，鉴于孔洞成核大小的重要影响，本文尝试给出了一个分析孔洞成核尺寸的方法。

For single vug,when the lateral scale of vug is smaller than Fresnel radius,and the vertical scale is smaller than tuning thickness,the reflection amplitude of vug is proportional to its scale. For carbonate reservoir with random arranged vug,seismic wave amplitude is proportional to vug density.Key words random medium;forward modeling;carbonate;vug

对于单个的溶洞而言，当溶洞横向尺度小于菲涅尔带半径，纵向尺度小于调谐厚度时，溶洞反射振幅与溶洞尺度成正比例关系；对于随机分布孔洞的碳酸盐岩储层而言，地震波能量与孔洞密度成正比例关系。

When additive sulfur is mixed with powdered catalyst, the surface integrity of diamond will be destroyed with different degree, especially (100) surface, the more additive sulfur is added, the more cavities appear on surface. The cavities almost show irregular and alveolate shape.

有添加剂硫参与合成时，两种粉末触媒合成的晶体表面的完整性具有不同程度的破坏，尤其是（100）晶面，随着添加剂硫含量的增加，晶体的表面出现孔洞缺陷，孔洞的形状多为不规则的&蜂窝状&。

After Huang Qu senior official yellow Jinlong carries on the contact to finish, immediately defers to the planning for action which formulates in advance, leads side one group of terse motion members, nonstop is rapid rushes recent to the control center, nearly with the ellipse planetoid rugged surface, nearby the flatwise bend thorough giant steam hole, sees only this hole diameter to have about fully 200 meters, this time fierce toward the outside is erupting the pressure full steam; Huang Qu senior official yellow Jinlong earnestly examined without enough time that, then immediately lets the retinue survey group with the most advanced laser analyzer, surveyed has spouted the steam the temperature, the pressure as well as includes other material each data, obtained the data and formerly obtained the data astonishing consistency, in which vapor temperature reached as high as 500 degrees, about the pressure 50 atmospheric pressure, most worrying was in this steam includes some kind of humanity's unknown micro material, possible ambush some kind of unexpected danger, to be needing the further experimental analysis, could obtain the correlation the conclusion!

黄区长官黄金龙进行联络完毕后，就马上按照预先制定的行动计划，带领身边一批精悍的行动队员们，马不停蹄迅速赶到离指挥中心最近的，几乎与椭圆小行星崎岖不平的表面，平直弯曲深入的巨大蒸汽孔洞跟前，只见这个孔洞直径足有200米左右，此时正剧烈的往外喷发着压力十足的水蒸气；黄区长官黄金龙来不及认真查看，便马上让随行探测小组用最先进的激光分析仪，测量了一下喷出蒸汽的温度、压力以及含有其他物质的各项数据，得出的数据和先前得到的数据惊人的一致，其中蒸汽温度高达500度，压力50个大气压左右，最令人担心的是此蒸汽中含有某种人类未知的微量物质，可能潜伏着某种意想不到的危险，需要进一步的试验分析，才能得出相关的结论！

Coli. Transmission electron microscopy was used to evaluate the cell morphology of both the normal and the treated E. coli. The observation with TEM suggested that silver nanoparticles lead to the formation of "pits" in cell wall of the bacteria, and silver nanoparticles could enter into periplasm through the pits and destroyed the cell membrane.

采用透射电镜观察了经纳米银粒子处理过的大肠杆菌细胞形态变化过程，结果显示纳米银粒子先在细胞壁上产生小的孔洞，通过这些孔洞进入周质空间，导致细胞膜成分渗漏和破坏细胞膜，进而进入细胞内部。

While the average bulk pore diameters which were measured by porosimeter were 0.33μm and 0.24μm for NMP and TEP system, respectively. It revealed that the permeate resistance was in the inner surface.

但利用孔隙测定仪所量测之平均孔洞直径分别为0.33μm与0.24μm，相近於内表面平均孔洞直径，表示内表面为主要透过阻力。

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。