查询词典 surfaces

Combined with the measurement for characterized curves of discontinuous helicoidal surfaces, a method using grey theory to detect unwanted asperities in the dynamic measurement of cutting edges is studied.

建立了具有普遍意义的仪器综合定位误差与曲面测量误差的基本关系式，并以此导出了曲面形状公差与测量仪器精度的关系式。

Real contact between two surfaces occurs only at the asperities, which resulted in the fact that the asperities in real contact carry high load and are prone to elasto-plastic deformation.

摩擦副接触表面的接触只发生在极少数微凸体上，导致这些微凸体承受了较大的载荷，极易产生弹塑性变形。

Under the basis of fracture topography analysis, the micro-contact model of asperity and the contact process between two fracture surfaces have been studied.

在裂缝拓扑特性参数分析的基础上，对裂缝接触的微观弹性模型和自然裂缝的实际接触过程进行了深入地分析。

ABSTRACT In this paper, integrated with surface topography, asperity contact behaviour and fluid mechanics, the lubrication of real engineering surfaces and their rubbing behaviour are described in experiment and theory.

本文结合实际工程表面的形貌特征、表面微凸体接触力学性质和润滑力学性质对粗糙表面的润滑及摩擦特性进行了系统的实验研究和理论分析。

Heat rises from the ground, especially on surfaces like cement and asphalt, and dogs absorb and release heat through their feet.

热度由地面上升，特别像水泥和沥青地面，狗狗则是用脚掌吸收和释放热量。

Discussion is made to some properties of aspheric surface. A novel method is presented to define and calculate the best fitting sphere and the asphericity of high order aspheric surface. Thus, the asphericity calculations of the conicoid and high order aspheric surfaces are unified.

在本文中，对非球面的一些性质进行了讨论，提出一种新的高次非球面的最接近球面及最大非球面度的定义和计算方法，实现了轴对称的高次非球面和二次非球面的非球面度计算的统一。

Results The levels of IgE,IL-4and histamine in sera and the number of acidophilic cells in blood were all in-creased;The asphyxiant sign,the congestion and edema of the epiglottis,a large amount of the lightish yellow mucous fluid with some blood-filaments in the tracheae,pneumochysis,scattered petechiae on the inside surfaces and the bot-toms of both lung lobes were found;cerebromeningeal haemorrhage and cerebral edema were observed under microso-cope.

结果 检血中IgE、IL-4、组胺含量和嗜酸粒细胞数量均显著增加。死者呈窒息征象；气管喉头充血水肿，气管内有大量淡黄色夹有血丝的粘性液体，肺水肿，肺叶间及肺底部散在点状出血；脑膜出血和脑水肿。

Therefore, quantum chemistry associated with surface analytical techniques is used to investigate the key surface reactions involved in the growth and functionalization of group-IV semiconductor surfaces.

我们的计算从理论上预测了有机小分子催化反应的机理和可能的反应路线，对于丙烯醇在Si(100)-2×1上表面上的计算表明O—H解离反应是表面选择性的反应通道。

The tires would burst if they did not have the pressure of the atmosphere against their surfaces.

如果我们现在没有了大气压来顶住或压住那些汽车轮胎的表面，那么那些轮胎就会爆裂了。

At least one of the first and second axially facing surfaces has a friction reducing surface treatment.

第一轴向面和第二轴向面中至少一个具有减小摩擦的表面处理。

Anna: No, I've got a hangover.

不是，我昨晚宿醉了。

We head into the mountains in Su's new Land Cruiser, stop for lunch at a scenic restaurant and then hang around drinking beer and eating fruit as two of his employees attempt to lure the birds with a tape recording of the fowl's mating call.

我们坐上苏的巡逻车向山顶出发，在一家风景优美的餐馆吃了中饭。然后我们喝着啤酒吃着水果四处逛。