硬表面

Then, by the aid of the self-made piezoelectric vibration table, experiments of vibration drilling were done on duralumin (2A12) and stainless steel (0Cr18Ni9), and the aperture size, surface topography and surface roughness were tested.

在此基础上，利用自制的压电式振动工作台进行了硬铝和不锈钢的轴向振动钻削实验，并对孔径大小、表面形貌和表面粗糙度进行了测量。

In the calculation, a surfactant molecule is divided into the hard-sphere segments, according to its molecular formula.

在计算中，将分子按照其分子式划分为硬球链节，对7个非离子表面活性剂—水体系的临界胶束浓度进行了关联，并预测了其它18个表面活性剂体系的临界胶束浓度。

Engine, this paper found out that the antigalling abilities for parts being tested although quite smooth, even with quenched and ground surfaces were not too high, while the antigalling abilities were quite higher for those surfaces more rougher than the former but possess fairly big negative contour skewness RSK and considerable large mean spacing Sm of profile micro-inequality.

本文通过SRV 试验、Timken 试验和发动机挺杆的台架试验，发现了试件尽管很光滑，甚至是淬硬后精磨的表面的抗擦伤能力并不高，而粗糙度比前者高，但具有相当大的负轮廓偏斜度Rsk ，且具有相当大的轮廓微观不平度平均间距Sm 的表面具有较高的抗擦伤能力，这是由于它们具有较好支承面及众多"微油池"有利于润滑的结果。

In this paper,the laser hardening technological parameters and the nigrescence technology with surface oxidation have been studied on tiny workpieces of 4Cr13 stainless steel,while the influences of the laser technology and various lapping ratios on hardness,depth and microstructures of the hardening layer have been explored.

研究了 4Cr13不锈钢细小零件激光表面强化工艺参数和材料表面氧化法发黑工艺，探讨了激光工艺和不同的搭接率对强化层硬度、淬硬层深度和表层组织结构的影响。

He that is more than a "real", although the underground workers, cautious, simple-hearted surface weak but I played the "hard tough, this man will is extremely powerful and strong." instead of surface

他认为余则成是一个"真真正正的地下工作者"，虽然表面木讷软弱，谨小慎微，"却是我演过最硬的硬汉，这样的人内心要极其强大，而不是表面强大。"

The group B presented lots of petechiae since the fifth week; the surface of right lung began less petechiae; during 26th week, the symptom of reduced volume and hard surface was less than before.

大体标本观察发现，单纯照射组大鼠于照射第5周时见肺脏肿胀、表面鲜红，并有暗红色斑片状出血；第12周时肺肿胀减退，表面瘀斑颜色转暗；第26周时其肺脏体积缩小、质地变硬，可见苍白实变灶。

The structure layer turns from TOa type to TOaT type (balanced by interlamellar cations), then to TOaT type for kaolinite, illite and pyrophyllite, respectively; alumina to silica mass ratio turns from 0.86 to 0.42; the surface zeta potentials turn small, but they show little relation with their surface charge density.

通过红外光谱分析可知，十二胺和油酸钠在一水硬铝石、高岭石、伊利石和叶蜡石表面的吸附主要以静电力作用的物理吸附为主，与矿物的表面电性有关。

This discovery proves that the shot peened surface has been work hardened, rather than work softened. On the other hand, it implies that half width value could not correctly characterize the superficial mechanical features for some material states.

这一发现说明，即使对于硬状态材料，喷丸表面也能获得组织强化，对于某些材料状态，半高宽测量结果不能正确反映其表面的力学特性。

Friction decreases when the surface becomes softer. But it increases as the surface becomes harder appears ahead of time relatively. Barefoot land hip joint angle displacement and angular velocities is it wear shoes land the hip joint to greater than or not in shoes of putting on. Total landing time, a stream of straight skin and sura skin muscle shrink, act and resist the skin group short of moneyly, and the length is shortenned when the skin muscle shrank before a stream of bicepses and shin bones, it is the function skin group.

髋关节、膝关节与踝关节之角度、角位移、最大角速度、垂直分力第一峰值与第二峰值、50ms被动冲量都会随著著地表面材质的软化而变小；而著地在硬地表面，冲击的力量会随著增加，相对地第一峰值时间会随著提早出现，在穿鞋与否和著地材质交互作用下，赤足著地髋关节角位移与角速度都大於穿鞋著地髋关节。

In the process of wood drying, because that the dry rate on the surface of wood is ten times than which inside, the moisture content of wood on the surface reduce to the fiber saturation point first, and begin to shrinkage, but the moisture inside content of wood is far higher than the fiber saturation point, the higher the standard criterion in wood drying, the more obvious of shrinkage.

摘 要：在木材干燥过程中，由于木材表面水分的蒸发速度比木材内部水分移动的速度大10倍左右，因此木材表面的含水率首先降低到纤维饱和点，并开始发生干缩，而此时木材内部的含水率还远远高于纤维饱和点，干燥基准越硬，这种现象越突出，木材发生开裂的可能性就越大。

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。