查询词典 brittle

Brittle materials for the grinding and polishing are very good results .

对于脆性材料的研磨和抛光有很好的效果。

The method and step of building the brittle model were brought forward based on the chart theory.

提出了基于图论理论的系统脆性模型建立的方法和步骤。

Her authority in this new group was brittle and, like the fear of a bugbear

她在这个新群体中的权威岌岌可危，就像所有小蜜蜂都害怕妖

Her authority in this new group was brittle and, like the fear of a bugbear by all of the young bees, all of the worker bees were watching to see if she would lead well.

她在这个新群体中的权威岌岌可危，就像所有小蜜蜂都害怕妖怪一样，所有工蜂都拭目以待，看她是不是能当好这个领导。

Brittle fracture mechanism of butt welding in web connections under severe earthquakes is analyzed and studied based on the results of calculation.

计算结果分析表明，梁翼缘对接焊缝在循环荷载作用下脆断破坏的原因是焊缝两端存在着严重的应力集中，且焊缝处于三向受力状态。

As calcium phosphate is a brittle material, it might disintegrate oer time because of fatigue failure of the cement.

由于磷酸钙是一种脆性材料，随着时间的推移它可能会因为骨水泥的疲劳折断而裂变。

Cathleen was as white as Cade had been the day Scarlett called, white and hard and brittle, as if her face would shatter if she spoke.

凯瑟琳跟思嘉拜访那天的凯德一样苍白，苍白、冷峻而刚脆，仿佛一说话她的脸就会破裂似的。

Based on the foregoing analysis, the critical condition of realizing ductile/brittle transform is confirmed, and then, the model of ductile grinding of engineering ceramic is built.

以陶瓷材料压痕断裂力学、线性断裂力学和微观断裂物理学为理论基础，系统的分析和讨论了磨削加工过程中微裂纹的产生机理及其影响因素，建立了裂纹分布模型，并根据位错产生微裂纹机制，对磨削过程微裂纹的形成采用位错塞积模型来描述，从能量平衡的角度，讨论位错裂纹的稳定性与磨削应力的关系，确定了材料脆性去除和塑性去除转换的临界条件，最终建立以此为基础的工程陶瓷材料延性域去除模型。

Under the actual production of the traditional technique,the low chrome white cast iron grinding ball is more brittle,which is the main reason to disabled in production and employ.

在传统工艺的实际生产条件下，低铬白口铸铁磨球易形成较大脆性，这是导致此类磨球生产和服役条件下失效的主要原因。

The fracture toughness testing technique for the central cracked circular disk specimen is given to investigate the fracture behavior of brittle material polymethyl methacrylate under pure mode Ⅰ, pure mode Ⅱ and mixed-mode loadings. The experimental results show that the load distribution angle is always greater than 8° for all different loading conditions.

给出一个中心裂纹圆盘断裂试验的较完整的试验技术，并用此试验技术在岛津材料试验机上对有机玻璃(polymethyl methacrylate， PMMA)这种典型的脆性材料成功地进行纯Ⅰ型、纯Ⅱ型和复合型加载条件下的断裂试验。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。