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Deformation experiment of amphibole shows that ,under conditions of pressure that is similar to the depth at which crustal low velocity layer of the Qinghai Xizang plateau is buried (20 30 km), and temperature heated to 800℃and 1000℃,amphibolite undergoes plastic deformation and enters steady creep strain states.
在相当于青海—西藏高原地壳低速层埋藏深度(20 ~30 km)的压力条件下进行了角闪岩的变形实验。实验表明,当加热到800℃、1000 ℃时,角闪岩出现塑性变形,并进入稳定蠕动应变状态。
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And in lower crust, about 20-25km depth, due to the time detained was relative long, the amphibolite facies metamorphism happened.
而在20-25km的中、下地壳层位,由于滞留的时间较长,这些花岗岩则发生了角闪岩相变质作用。
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In conclusion, we have conducted the in-depth analyses of HetR protein function in the molecular mechanism of heterocyst differentiation and pattern formation in Anabaena. Our results show that HetR/PatS interaction plays a key role in heterocyst differentiation and pattern formation.
综合以上内容,我们对HetR蛋白在蓝细菌异型胞分化与格式形成过程中的分子调控机制作了较为深入的研究,我们的研究显示HetR/PatS的相互作用在异型胞分化与格式形成中起重要作用。
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Evaluated, in the four stages of one month, 3 months, 6 months and 12 months after restoration, their Plaque Index, Gingival Index, Gingival Bleeding Index, Probing Depth and X-ray bone absorption. Subgingival plaque samples were isolated and cultured by the selective medium of black-pigment bacteria, F. nucleatum, Actinomyces viscosus and anaerobium.
临床选取32名种植患者的44枚种植体,记录了修复后1个月,修复后3个月,修复后6个月,修复后12个月四个时段,入选种植牙的菌斑指数,牙龈指数,牙龈出血指数,探诊深度;采用产黑菌、放线菌、具核梭杆菌及厌氧菌的选择性培养基对龈下菌斑标本进行了分离培养。
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Depth of anaesthesia monitoring: what's available, what's validated and what's next?
麻醉深度检测:哪些是有效的,哪些已经得到认可,将向什么方向发展?
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The basic approach of protecting people from being hurt or killed in an accident is to improve crashworthiness of vehicles. This paper starts with discussing theories and methods for vehicle passive safety design, which included experiential methods, analytic methods, multi-body dynamics methods, crash test methods and the finite element method. Emphasis will be paid to the basic FEM theories and algorithms of impact problems. Topics discussed include the governing equation, element discretization, hourglass control, time integration, material model, shell element algorithms and contact-impact algorithms. For more reliable simulation results, this paper then conducts study on how to accurately get material model parameters by combining the FEM method with experimental method, and develops relevant material test machine and parameter calculating software. Based on that, basic typical impact simulation and test validation study are conducted. On the basis of the above work, the paper studies the thin-shell structures'crashworthiness, which was affected by the following factors: spot-weld features, shell thickness, cross-section and pre-deformation. As to vehicle parts'crashworthiness, the paper conducts simulation study of designing energy-absorbing steering system and adaptive airbag system. A practical energy-absorbing steering wheel is designed as an example. In further depth research, the paper suggests several inverse quantificational methods for vehicle crashworthiness design based on the ideal crash characteristics. The above theories and methods are applied with good results through several practical vehicles' crashworthiness design and improvement.
文中对汽车碰撞安全性的设计理论和方法进行了归类和总结,其中包括经验法、解析法、多刚体动力学法、试验法以及有限元方法等;重点介绍了碰撞有限元法的基本理论和有关算法,涉及到有限元求解控制方程、单元离散、沙漏模态控制、时间积分、材料模型和应力修正、薄壳单元算法以及接触碰撞界面算法等,探讨了有限元计算中的材料模型参数获取技术,开发了相应的材料试验装置及材料模型参数反求软件,在此基础上进行了基本的碰撞仿真算例和试验对比研究;文中通过应用有限元方法研究了薄壁构件的碰撞吸能特性,指出了设计薄壁吸能构件时需要考虑的几个主要影响因素,即焊点、壁厚、横截面和预变形等;在关于车辆部件的碰撞安全性能设计中进行了吸能转向机构和自适应安全气囊的仿真研究,提出了吸能转向机构和自适应安全气囊的仿真研究方法;文中最后探讨了整车碰撞性能的设计与改进方法,提出了以理想碰撞特性为目标,采用分段加速度或者根据碰撞时间进行设计的反推设计法、部件吸能仿真优化设计法等量化设计方法,并通过综合应用文中所讨论的相关技术进行了整车碰撞性能的设计与改进实例研究,所选定的车型是大众化的普通轿车和碰撞安全性基础较差的微型面包车,研究结果表明,本文所提出的设计与改进方法是适用而有效的,具有重要的工程实用意义和价值。
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Anchor rod depth and space on different rock side slope of different gradient, based on the anchor rod
摘要围绕岩石边坡生态恢复技术,通过对锚杆受力情况的研究分析,确定了在不同岩石类型以及不同坡比的坡面上,其锚杆的最佳锚固深度和最佳锚固间距。
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The degree andor depth to which a person's work and educational background is a good fit for a particular job.
在何种程度上,教育背景及工作背景适合从事某一工作。
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Part 3 is an in-depth research on Woolf's androgynous vision through a close examination of Orlando.
第三部分通过对《奥兰多》的文本分析,进一步阐释伍尔夫的"双性同体"理论。
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Seafaring Ministry of Science and Technology has developed products: fisheries exploration transducer depth transducer temperature range, wind speed anemoscope , electric gyrocompass repeater.
航海科技部自主开发产品有:渔探换能器,水深水温系列换能器,风速风向仪,电罗经复示器。
- 相关中文对照歌词
- L'unité
- Katie's Tea
- Tată (Father - Romanian Version)
- Te-Am Visat
- La Colline Des Roses
- Out Of My Depth
- La Dance Ghetto
- Depth Charge Ethel
- Tu Şi Eu
- Out Of My Depth
- 推荐网络例句
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He paid $5,000 for this cupcake.
他我这个纸杯蛋糕花了5000美元。
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I mean, if you want to, that is
我的意思是,如果你们想吃的话。
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In addition to his fee, he would be awarded an unaltered clone of himself.
除了费用,他将获得一个不作任何改造的克隆体。