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- 与 occur 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The executions that occur in Huntsville have produced a devastating apathy in the citizens of the town.
在汉茨维尔发生的施行导致了在镇的公民的毁灭的无积极性。
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The main results of the investigation are as following:(1) Some important criteria for the design of multi-layer structure are acquired: the ratio of the layer thickness to the contact diameter should be controlled to a value about 0.8; increasing the number of the gradient layers and elasticity modulus of the top layer would benefit to the yield strength and the stress status at the interface.(2)By means of molecular dynamics simulations for a indentation and sliding process, it is discovered that dislocations of 45 direction to the surface occur in the surfaces layer, which is correspond to the direction of the plastic flows observed in the macroscopic continuous medium. The irreversible deformation caused by the dislocation and the atom piles at the surface are responsible for the irreversibility of the force response. They are also the main factors for the friction generation. The temperature and the indentation velocity have significant effects on the deformation behaviors of the material of the surface layer. The yield strength would increase obviously if the indentation velocity is greater than 10 m/s.(3)A method to evaluate the fracture toughness of coating by estimating the crack-density functionβof a Wicker''s indentation was proposed. Meanwhile a new surface treatment technology was developed using non-equilibrium plasma.(4)A MD-FE hybrid method and corresponding software was developed to analysis the tribological behaviors for multiplayer system.
研究主要内容和结果有:(1)得到指导梯度膜设计的几个准则:控制膜层厚度与接触半径比在0.8左右为宜;适当增加梯度层层数和顶层弹性模量,有利于提高抗屈服能力和改善界面处的应力状态;(2)通过对嵌入和滑动摩擦过程的分子动力学模拟,发现表层产生一个与宏观连续介质的塑性流动方向观测一致的45 方向位错;位错造成的不可逆变形和表面的原子堆积,是力的响应不可逆性的原因,也是构成摩擦力的主要因素;温度和嵌入速度对材料变形特性有显著的影响,当嵌入速度大于10 m/s时,屈服强度明显增加;(3)提出压痕裂纹密度系数β半定量判定膜层断裂韧性的方法;并开发出表面强化新工艺;(4)开发出分析表面摩擦学特性的MD-FE复合模拟方法和相应模拟软件。
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The hydantoin convert enzyme used in this essay is D2 hydantoinase, which has very high convert activity for D2 hydantoin. Therefore, if the used process of conversion do not occur the enzyme, the racemizatoin of hydantoin will be a speed limited step for the process that hydantoinase produce optical active amino acid.
本文采用的海因转化酶系中所含为 D2海因酶,对D2海因的转化活性非常高,由此可见,如若采用的转化体系中没有消旋酶的存在,则海因的消旋成为海因酶转化生产光学活性氨基酸的一个限速步骤。
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The characteristics which occur in the practice of the application of the fractal theory to hydrology and water resources ...
概括了当前在应用中的特点:活跃思想和方法创新,同时指出值得注意的问题:在大量资料基础上进行深入分析和充分论证。
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Hydrophobia will occur and get head even in the coldest weather .
狂犬病即使在最冷的天气里也会发生并加剧。
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Hydrophobia will occur and get head even it the coldest weather.
狂犬病即使在最冷的天气里也会发生并加剧。
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Hydrophobia-(hydro+phobia),Hydrophobia will occur and get head even in the coldest weather.
狂犬病即使在最冷的天气里也会发生并加剧。
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The stability criteria on the hydrostatics theories are used to estimate whether aship in the heavy seas capsize or not,this method ignores the time domaincharacteristics, frequency characteristics and the randomicity of ship motions. Thecapsizing accidents occur now and then although ships are designed according tostability criterion. So, it is also the important problem for human beings to investigatethe nonlinear characteristics of ship motions and evaluate the survival ability of ships.
目前的稳性标准是根据流体静力学理论来评判船舶在风浪中的安全行为,这种方法忽略了船舶运动的时域特性、频域特性及随机性,按照目前稳性规范设计的船舶仍然时有倾覆发生,因此研究船舶的非线性运动特性和评估船舶航行的生存能力,仍然是人类面临的重大课题。
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Several forms of design storm hyetograph have been developed in recent years. A Gauss-Markov hyetograph is based on non-stationary first-order Markov process. It is a dimensionless hyetograph and the most likely to occur is the average hyetograph.
暴雨雨型模式有许多种,本研究采用具尺度不变性之高斯马可夫雨型模式,该暴雨雨型模式视每一场降雨事件为一随机历程,考虑每个时刻之序列符合常态分布,以一阶高斯马可夫历程叙述临前水文条件的遗传效应,因此该雨型亦为具有最大概似度之设计暴雨雨型。
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Results: MR examination of bone contusion were mostly less than two weeks, but a few patients were longer than one year: STIR, TIWI were more sensitive lesion detection series in hone contusion (100% and 95.7%). Bone contusion mostly occur at knee, and lesions mainly distributed in the margin area of articular (69.8%), in superior portion of vertebral body(74.l%). Bone contusion following-up showed a line-like hyperostosis and osteosclerosis in contusion area. Histological manifestations of bone contusion were local trabecular micro fractures, edema, hemorrhage and injury of fat tissue.
结果:1多数骨挫伤MRI检查在两周内完成,少数病人时间超过1年;2检出骨挫伤敏感的MRI序列为STIR及T1W/I(100%及95.7%);3膝关节是骨挫伤的好发部位,病灶主要分布于骨边缘区(69.8%),在脊柱主要分布于椎体上缘终板下(74.1%);4骨挫伤影像随访提小病变区出现线状骨质修复,骨髓水肿吸收;5骨挫伤病理为骨小梁显微骨折,骨髓水肿、出血和脂肪损伤。
- 推荐网络例句
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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。
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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。
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When I was in school, the rabbi explained everythingin the Bible two different ways.
当我上学的时候,老师解释《圣经》用两种不同的方法。