查询词典 non-mechanical
- 与 non-mechanical 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In this paper, two assemblies of special test equipments have been designed and fabricated by authors in our laboratory: namely Catalyst Molding Process Analyzer and Catalyst Mechanical Process Tester. These new skills are developed for the dynamic studies on whole mold forming process and crushing process of Fe-Cr WGHS catalyst pellet. Based on the orthogonal experimental design, the effects of some factors during the forming process of solid catalyst, such as predensification proportion, calcination time, calcination temperature and content of graphite on the mechanical strength of catalyst pellets are systematically examined, and the molding conditions have been optimized. Based on the experimental data, the relationship between catalyst density and forming pressure are educed, and the physical significances of some related parameters are described. The parameter of macro scopic elastic moduls has been suggested to character the mechanical properties of molding catalyst. The effects of molding pressure on mechanical properties of catalyst pellets are discussed, and results show that there exists a optimal molding pressure for the ideal mechanical properties: when over-high or over-low pressure is applied, the specific surface area and side crushing strength of catalyst pellets will decreased. The "rebound effect" will be undermined by the unsuitable pressure maintain process, resulting in the apparent decrease of mechanical strength of catalyst pellets.
本研究通过自行设计制造的催化剂模压成型过程分析仪(Catalyst Molding Process Analyzer, CMPA)和催化剂力学性质测试仪(Catalyst Mechanical Properties Tester, CMPT),以Fe-Cr系高温变换催化剂片剂为研究对象,对成型过程和受压破碎过程提供了全过程动态研究的新手段;本研究利用正交实验设计方法考察了固体催化剂成型过程中诸因素(包含预密致比例、煅烧时间、煅烧温度和石墨含量等)对催化剂成型体强度的影响,并对成型条件进行了优化;根据实验结果,关联确定了固体催化剂成型过程中的密度-压力关系式,并对方程中诸因子的物理意义进行了描述;提出了一种利用宏观弹性模量来表征成型催化剂的力学性质的方法;研究讨论了成型压力对催化剂成型体强度性质的影响,结果表明:对于催化剂成型体的强度和比表面性质,成型压力存在着一个最佳值,过高的成型压力会导致比表面积和侧压强度的降低;不适当的成型压力的维持时间会破坏&压力回弹&作用,造成催化剂成型体的机械强度明显降低。
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The details of the research include: By studying the structure of the natural bamboo fiber, make the basic morphological structure and the degree of crystallization clear; By studying the mechanical property of the fiber, make the feature of mechanical property of the natural bamboo fiber clear; By studying the mechanical property of the pure yarn and its blends, make the feature of mechanical property of the yarn clear; and we also study the mechanical property changes of the pure yarn and its blends in the hygrometric state different temperature state and after mercerization and alkali shrinkage.
研究内容包括:通过对天然竹原纤维结构的研究,探明竹原纤维的基本形态特征和结晶度等特征;通过对天然竹原纤维机械性能的研究,探明竹原纤维的力学性能特点;通过对竹原纤维纯纺、混纺纱线力学性能研究,探明其纱线的力学性能特点;研究在湿态条件下,竹原纤维纯纺、混纺纱线力学性能的变化特点;研究在不同温度条件下,竹原纤维纯纺、混纺纱线力学性能的变化特点;研究在丝光、碱缩条件下,竹原纤维纯纺、混纺纱线力学性能的变化特点。
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The increased amount of non--exchangeable NH4^+-N during the incubation indicated as the following tendency, namely, Eum-Orthic Anthrosols 〉 Los - Orthic Entisols 〉 Hap-Ustic Isohumisols 〉 Ust-Sandiic Entisols. Organic material influenced significantly the increased amount of non-exchangeable NH4^+-N (P was 0.0002, 0.0004 and 0.0003 when incubated at 20 d, 50 d and 60 d, respectively). NH4^+-N increased remarkably when Stlpa bungeana and Medicago sativa were added compared with no addition. The contents of non-exchangeable NH4^+-N increased significantly when added (NH4)2SO4 compared without addition at 20 d, 40 d and 60d of incubation and P was 0.0037, 0.0033 and 0.0027, respectively. It was the result that the NH4^+-N from (NH4)2 SO4 was fixed within the soil. The increased amount of non-exchangeable NH4^+-N increased significantly for different soils, on which different vegetation types grew before the collection of soil samples, when incubated at 20 d (P=0.0434), but not significantly at 40 d and 60d (P=0.7378 and 0.5375). The increased amount of non-exchangeable NH4^+-N in the soil, on which crop straw and nitrogen fertilizer had been incorporated for a long-term period, was larger than that of no addition, but it was not significantly different among these two fertilization models. Soil clay, total N and organic matter were positively correlated remarkably with the contents of non-exchangeable NH4^+-N, the increased amount of non-exchangeable NH4^+-N had no correlation with soil clay, whereas it had significantly positive correlation with total N and organic matter.
培养期间非交换性NH4^+-N的增加量均表现为以土垫旱耕人为土最大,其次是黄土正常新成土,简育干润均腐土和干湿砂质新成土较小;添加有机物料极显著影响培养期间的非交换性NH4^+-N增加量(培养20d、40d和60d时P分别为0.0002,0.004和0.0003),表现为紫花苜蓿和长芒草土壤非交换性NH4^+-N的增加量均极显著高于不添加有机物料的对照土壤;在培养20d、40d和60d时,加(NH4)2SO4土样非交换性NH4^+-N的增加量显著大于不加(NH4)2SO4土样(户分别为0.0037,0.0033和0.0027),这是土壤对(NH4)2SO4中NH4^+-N固定的必然结果;不同植被类型土壤培养20d时的非交换性NH4^+-N增加量差异显著(P=0.0434),培养40d和60d时差异不显著(p分别为0.7378和0.5375);长期秸秆和氮肥配施土壤非交换性NH4^+-N增加量大于不施肥对照土壤,但差异不显著土壤黏粒、全氮和有机质与培养0d、20d、40d和60d时土壤的非交换性NH4^+-N含量均呈极显著正相关;而非交换性NH4^+-N的增加量与粘粒无相关性,但与全氛和有机质呈显著正相关。
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In this topic, the dynamic analysis methods for piezoelectric vibrator are studied systematically based on the theoretical model, FEM numerical experimentation and FEM governing equation for given compound-mode vibrator, and some valuable conclusions are obtained. The main work accomplished is summarized as follows: 1.Elaborate the main modeling methods for piezoelectric vibrator and the significance and necessity to study the dynamic characteristics of piezoelectric vibrator which emphasize the urgency of this paper. 2.Take the bending deformation induced by piezoelectric ceramic as example, the energy transfer mechanism of electric energy to mechanical energy are analyzed; the motion and force transfer mechanism are analyzed for the longitudinal-bending vibrator. 3.Based on mode assumption and Hamilton principle, the coupling model of piezoelectric vibrator of linear USM is built; moreover, the equivalent circuit model is obtained and a coupling equation represents the relation between electric parameters and mechanical parameters is derived which provides foundation to match the vibrator and driving circuit. 4.Combine the constitutive equation of piezoelectric ceramic with elastic-dynamical equation, geometric equation in force field and the Maxwell equation in electric field and the corresponding boundary condition equation, the FEM control equation for piezoelectric vibrator of USM to solve dynamic electro-mechanical coupling field is established by employing the principle of virtual displacement. The equation lays the foundation to study the non-linear constitutive equation of piezoelectric ceramic driven by high-power. 5.Define the dynamic indexes of characteristic of vibrator and carry out variable parameters simulation by calculating the model parameters and the electric characteristics of vibrator are simulated according to the equivalent circuit model. By numerical experimentation, the working mode of vibration of vibrator and the shock excitation results of the working frequency band which provides the mode frequency to realize bimodal are analyzed. Detailed calculation of the electro-mechanical coupling field parameters is made by programming the FEM control equation.
本课题从理论模型、有限元数值试验、有限元控制模型等方面以复合振动模式振子为例对超声电机压电振子的动力学特性及其分析方法进行了全面系统地研究,得出了许多有价值的结论,主要概括如下: 1、阐述了目前针对超声电机压电振子的主要建模方法,对压电振子动态特性的研究意义和必要性进行了论述,突出了本文研究内容的迫切性; 2、以压电陶瓷诱发弹性体发生弯曲变形为例,分析了压电陶瓷通过诱发应变来实现机电能量转换的机理;对基于纵弯模式的压电振子的运动及动力传递机理进行了分析; 3、基于模态假定,利用分析动力学的Hamilton原理,建立了面向直线超声电机压电振子的机电耦合动力学模型,并据此建立了压电振子的等效电路模型,导出了电参量与动力学特性参量的耦合方程,为压电振子与驱动电路的匹配提供了依据; 4、从压电陶瓷的本构方程出发,综合力场的弹性动力学方程、几何方程、电场的麦克斯韦方程以及相应的边界条件方程,采用虚位移原理,建立了压电振子动态问题机电耦合场求解的有限元控制方程,为研究其大功率驱动下的非线性本构模型奠定了基础; 5、界定压电振子的动力学特性指标,对压电振子的机电耦合动力学模型参数进行计算及变参数仿真;依据等效电路模型,对压电振子的电学特性进行了仿真分析;通过有限元数值实验,对压电振子工作模态附近的模态振型及工作频率附近的频段进行了激振效果分析,找出了实现模态简并的激振频率;利用有限元控制方程,通过编程计算,对压电振子的力电耦合场参数进行了详细计算,得出了一些有价值的结论。
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According to the problem of outlet leakage of propane on the propane pump mechanical seal in the olefine factory of Qilu petro-chemical company, the new-type assembling non-contacting mechanical seal for propane pump was developed firstly on the basis of the principle of non-contacting of mechanical seal .
针对齐鲁石化公司烯烃厂丙烷泵机械密封频繁出现汽喷现象、密封端面泄漏严重的问题,根据非接触式机械密封原理,研制开发出了丙烷泵用新型非接触式机械密封。
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Firstly, oscillation between events of imperial and of local interest, the anticipated diamond jubilee of Queen Victoria (born 1820, acceded 1837) and the posticipated opening of the new municipal fish market: secondly, apprehension of opposition from extreme circles on the questions of the respective visits of Their Royal Highnesses the duke and duchess of York and of His Majesty King Brian Boru: thirdly, a conflict between professional etiquette and professional emulation concerning the recent erections of the Grand Lyric Hall on Burgh Quay and the Theatre Royal in Hawkins street: fourthly, distraction resultant from compassion for Nelly Bouverist's non-intellectual, non-political, non-topical expression of countenance and concupiscence caused by Nelly Bouverist's revelations of white articles of non-intellectual, non-political, non-topical underclothing while she was in the articles: fifthly, the difficulties of the selection of appropriate music and humorous allusions from Everybody's Book of Jokes (1000 pages and a laugh in every one): sixthly, the rhymes, homophonous and cacophonous, associated with the names of the new lord mayor, Daniel Tallon, the new high sheriff, Thomas Pile and the new solicitorgeneral, Dunbar Plunket Barton.
123首先,有关皇室与当地的两档子事,歌中究竟写哪一桩,令人难以做出抉择。要么是提前描写维多利亚女王(一八二0 年出生,一八三七年即位)的六十周年大庆;要么是将新修建的市营鱼市开张典礼的日期移后。第二,深恐皇族约克公爵和公爵夫人以及布赖恩。勃鲁国王陛下分别前来访问一事,会招致来自左右两方面的反对。第三,新峻工的伯格码头区的大歌剧厅和霍金斯街的皇家剧场,存在着职业的礼仪与职业的竞争之间的矛盾。第四,由于内莉。布弗里斯特的那种非理性、非政治、不时兴的容貌会引起观众的同情;内莉。布弗里斯特身穿非理性、非政治、不时兴的白色衬衣,当她表演时一旦将衬衣袒露出来,会撩拨观众的情欲,令人担心会使观众神魂颠倒。第五,不论是挑选适当的乐曲还是从《笑话共赏集》(共一千页,每个笑话都令人捧腹)里选一些滑稽的隐喻都是困难的。第六,这首主题歌不论谐不谐音,都与新任市长大人丹尼尔。塔仑、新任行政司法长官托马斯。派尔以及新任副检察长邓巴。普伦凯特。巴顿的姓名有联系。
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ASI sandstone is an eco-friendly stone, and their products are non-polluting, non-radioactive, non-reflective, non-weathered, non-color, light, moisture, non-slip, breathable, sound-absorbing, heat-absorbing, insulation , wearable, rugged, portable, and so on plasticity characteristics of excellence, through the authority of certification bodies in Australia AMDEL and China Building Materials Industry Bureau "AAA" quality assessment, and its various physical test data are in line with architectural requirements, is the world's recognized sandstone top brand endorsement.
ASI砂岩是一种生态环保石材,其产品无污染、无辐射、无反光、不风化、不变色、质轻、防湿、防滑、透气、吸音、吸热、保温、耐磨、坚固、轻便、可塑性强等卓越特点,通过了澳大利亚权威认证机构AMDEL及中国建筑材料工业局的&AAA&质量评定,其各项物理检测数据均符合建筑装饰要求,是世界公认的顶级砂岩品牌的形象代言。
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The human heart is the center of the cardiovascular system. Integrated with mechanical, electrical, neural and biochemical properties, the heart is difficult to model, and there is no ideal integral model now. The developed electrical models haven't considered the mechanical properties and blood flow process in the heart; while the mechanical ones have normally deal with the heart in the diastole period, and the electrical activity was simplified too much although some mechanical models have investigated the heart during systole.
心脏是循环系统的核心,它集机、电、神经和生化控制于一体,建模难度很大,目前尚无较理想的统一模型;心脏电生理模型未与心脏的机械动力过程和血液流动过程联系起来;而心脏力学模型大都只研究舒张期的力学特性,即使研究收缩期心脏的力学问题,也往往对心电兴奋做了许多简化假设。
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According to the past few years, we deal million Units Mechanical experience, the whole system approach has been striving to excel in our understanding of customers faced the common problem of mechanical and mechanical parts and additional parts of the function of interference after the treatment, we have developed a high standard of mechanical adjustment system of innovation.
根据数年来,我们处理万台机械的经验,整个系统方法已经精进,在我们了解顾客所面对的共同机件问题及械件机能干扰和额外部份处理之后,我们已经发展出具有高水准机械调整革新系统。
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According to the past few years , we deal million mechanical experience, the whole system approach has been striving to excel in our understanding of customers faced the common problem of mechanical and mechanical parts and additional parts of the function of interference after the treatment, we have developed a high standard of mechanical innovations adjust system.
根据数年来,我们处理万台机械的经验,整个系统方法已经精进,在我们了解顾客所面对的共同机件问题及械件机能干扰和额外部份处理之后,我们已经发展出具有高水准机械调整革新系统。
- 相关中文对照歌词
- My Mechanical Friend
- Non C'è
- Hors-La-Loi
- Fidati Di Me
- Come Se Non Fosse Stato Mai Amore
- Lei Però
- È Ancor Mi Chiedo
- Incancellabile
- Non Cercare Un'altra Bocca
- Succede Al Cuore
- 推荐网络例句
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In contrast to the ubiquitous rising-sun-with-rays military flag of the Japanese, Chinese banners and ensigns feature a range of designs.
与遍地都是的太阳军旗不同,中国人的旗帜和徽章设计得各式各样。
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From their small corner of Feng's Guangzhou headquarters -- a jumble of pink leashes, squeezable rubber steaks, and plastic doggy Santas for Fido's stocking -- Soleil's designers come up with at least five new products a month.
从Feng 设在广州总部的产品展示柜台上可以看到,Soleil的设计师每月至少设计出5件新产品。
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FFT is important for additive synthesis because it helps us to estimate the values for the oscillators that produce the partials of the synthesised sounds.
FFT对加法合成是很重要的,因为它有助于我们评估产生合成音分音的振荡器的价值。