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- Through metallograghy SEM and TEM observation the initiation and propagation mechanism of cracks in cold-drawing of 72A hard wire was analyzed. 通过光学显微镜、扫描电镜和透射电镜观察,分析了72A硬线钢丝拉拔裂纹形成与扩展机制。
- The main wear mechanism of high speed roller chain is formation and propagation of crack in top layer of pin and bush. 汽车用高速滚子链的主要磨损机制是销轴、套筒零件表层的裂纹生成、扩展与剥落。
- The morphology of crack propagation indicate that there is the toughening mechanism of whisker's pull- out and crack deflection. 裂纹进展形态表明,存在晶须拔出及裂纹偏转增韧机制。
- The results shown that the main wear mechanism of automotive engine chain was form, extend and flaking of crack for top layer of pin and bush. 结果表明 ,汽车发动机正时链的主要磨损机制是疲劳磨损 ,销轴、套筒零件表面的裂纹生成、扩展与剥落是其主要磨损失效机理。
- To study the mechanism of crack extension by hyduaulic fracturing,the mass hyduaulic fracturing experiments are carried out in granodiorite at Fangshan District,Beijing,China. 水压致裂测试技术起源于石油的增产,现已发展成为测量地壳应力的一种有效方法。
- To study the mechanism of crack extension by hyduaulic fracturing, the mass hyduaulic fracturing experiments are carried out in granodiorite at Fangshan District, Beijing, China. 为研究水压致裂过程中裂缝的扩展机制，在北京市房山区花岗岩体中开展大流量水压致裂试验。
- Combined with the structure features at the relieve grooves of RD3A1 axles,the mechanism of crack generation at the relieve grooves on axle journals is expounde. 结合RD3A1车轴卸荷槽部位的结构特点,阐述了车轴轴颈卸荷槽部位裂纹产生的机理,为制定有效的预防措施提供了可靠的依据。
- In order to study the mechanism of crack extension by hyduaulic fracturing, the mass hyduaulic fracturing experiments were carried out in granodiorite rockmass at Fangsan, Beijing, China. 为了研究水压致裂过程中裂缝的扩展机制,在北京房山花岗岩体中开展了大型水压致裂试验。
- Based on analyzing the mechanism of destabilization of crack in dam, the mutation model is established by use of catastrophe theory, and the criterion of the stability of crack is given. 在研究裂缝失稳机理及特征的基础上,应用突变理论,建立了裂缝的突变模型,并得出裂缝稳定性的判据。
- The distribution of cracks and mechanisms of main ruptrue were influenced by making of the sawcut and properties of rocks. 岩石的切口结构和岩性变化对破裂迹线的空间展布和主破坏机制有重要影响。
- Cause Analysis and Control of Cracks in C. 火电工程中电缆隧道裂缝原因分析及控制。
- Cause Analysis of Cracks in Steam Turbine. 汽轮机转子裂纹原因分析及运行安全措施。
- The ground was full of cracks in the hot summer. 在火热的夏天,地上都是裂缝。
- The soldier told us where the firing mechanism of a rifle is. 那个士兵告诉我们哪儿是步枪的击发装置。
- The ground was full of cracks in the summer. 夏天地上都是裂痕。
- The process and mechanisms of crack coalescence within PS-TBC (plasma sprayed thermal grown oxides) were presented. 给出了等离子涂层内部裂纹形成过程及机理。
- The mechanism of local government is far from perfect. 地方政府的结构还很不完善。
- It doesn't have the side-effects of crack cocaine. 它可没有高纯度可卡因那样的副作用。
- Experimental and numerical results show that the mechanisms of crack coalescence is controlled by the geometric setting of the flaws and the confining pressure. 结果清楚显示裂纹贯通机制主要受加载条件与预置裂纹几何分布的影响。
- He asked the dealer for a nickel of crack. 他找毒贩要价值五美元的可卡因药丸。
