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Thus, this method is not restricted by the thickness and the layers of the laminates. And, it provides an valuable research method to the analysis of the interlaminated stress and failure of the laminates .
因此,该方法不受层合板厚度和层数的限制,它为层合板(特别是多层复合材料厚板)的层间应力和层间破坏分析提供了一种有效的研究工具。
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The vibration modes in ABA sandwich 180°domain structure have been analysized, it was found that the FDLW includes symmetric vibration mode and aymmetric vibration mode. A new asymmetric vibration mode have been found in the two Layer 180°domain structure with two metalized surfaces.
并指出基模色散特性的差别主要来自于畴层结构的不对称,铁电畴层波是畴最不对称情况下压电耦合的结果,随着层数目的增加,奇数层和偶数层的这种基模色散的差异将逐步减少,最终趋于铁电畴层弯曲波。
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The results of these analysis show that the initial stress of steel stiffened girder has a significant impact on maximum vertical displacement, maximum tensile stress of pavement surface and maximum shear stress of binding course; the deformation of steel stiffened girder has a significant impact on shear stress of binding course; heavy-vehicle load can increase each control index rapidly; the horizontal force of vehicle load has a significant impact on longitudinal tensile stress of pavement surface and longitudinal shear stress of binding course.
分析结果表明钢加劲梁初始应力对铺装层表面最大竖向位移、铺装层表面最大拉应力与粘结层最大剪应力均有显著影响;钢加劲梁变形对粘结层剪应力影响显著;重车荷载将使各控制指标均急剧增加;车辆荷载的水平力则对铺装层表面纵向拉应力与粘结层纵向剪应力影响显著。
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In the paper, the writer analyses, discusses and researches the factors which influent the seismic reflection features of all kinds of thin-bedding medium above and, firstly, sums up systemically the laws by which the parameters of the thickness of thin-bedding, the thickness of single layer in the thin-bedding group, the thickness of minor structure, the number of layers in the thin-bedding group, type of incident wavelet, main frequency and decay coefficient influent thin-bedding 〓smic reflection features.
作者在论文中还对影响上述各种薄互层介质地震反射特征的因素进行了详细地分析讨论和研究,首次较全面系统地总结出了薄互层的厚度、薄互层中单层厚度、子结构厚度、薄互层的互层数、入射子波的类型、主频、衰减系数以及地震勘探的采样率等参数对薄互层地震反射特征的影响规律,由此得出以下几点看法和结论
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The invention discloses a high-voltage P-type metal oxide semiconductor, including a P-type substrate, a deep N-well is arranged on the P-type substrate, an N-well drift region and a P-type drift region are arranged on the deep N-well, an N-type contact hole, a P-type source and a field oxide layer are arranged on the N-well, a P-type drain and the field oxide layer are arranged on the P-type drift region; the invention is characterized in that the thickness a grid oxide layer part which is positioned above the N-well is smaller than the grid oxide layer part which is positioned above the P-type drift region and a thin grid oxide layer and a thick thin grid oxide layer are respectively formed accordingly.
本发明公开一种高压P型金属氧化物半导体管,包括P型衬底,在P型衬底上设有深N型阱,在深N型阱上设有N型阱和P型漂移区,在N型阱上设有N型接触孔、P型源及场氧化层,在P型漂移区上设有P型漏及场氧化层,其特征在于位于N型阱上方的栅氧化层部分的厚度小于位于P型漂移区上方的栅氧化层部分并由此分别形成薄栅氧化层和厚薄栅氧化层。
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The enhance nient of the corrosion resistance laser dadoling of the CNTs/Ni60 coatings is due to that the reserved carbon nanotubes in the coatings segregate the corrosive medium and promote N-based alloy passivation, the formed phases of the carbide and the reserved carbon nanotubes homogenous distribution in the claddings resist die corrosion.
碳纳米管/镍基激光熔覆层耐腐蚀的原因在于熔覆层保留的碳纳米管使熔覆层更加致密,隔离了腐蚀介质,促进了镍基合金的钝化,从而提高了熔覆层的耐蚀性;同时,熔覆层中保留下来的碳纳米管和被分解的碳纳米管与金属基体形成碳化物,作为增强相均匀弥散在熔覆层中,它们的存在阻止了腐蚀坑的长大,因而蚀坑较小,耐腐蚀性得到提高。
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Interlayer oxidized zone can be divided accurately by Fe_2O_3, Fe_2O_3/FeO and U parameters. We can correct the field macroscopic color zoning by combining the macroscopic zoning and microscopic zoning. Univalent major elements components(Al_2O_3, SiO_2, K_2O, Na_2O) show remarkable activity at the process of interlayer oxidizing, their contents are variable and mingled in different zones and it can't be used in zoning. But we can speculate the developmental degree of interlayer oxidized zone and uranium mineralization according to the concentration trends and variation characteristics of sensitivity group, activity group and their ratios .(3)The comparatively steady elements such as lithiphile elements, sulfophile elements and high field strength elements change regularly at the process of interlayer oxidation except some radioactive elements. Trace elements and rare earth elements commonly enrich in thin rock clast such as mudstone, in which the enriched elements species are more than those in the whole rock, which indicate that the regeneration action in caulking matter are more deep than that in whole rock at the process of interlayer oxidation, and the reallocate intention of trace elements in main minerlized rock in Tuha basin are more intensive than that in Yili basin at the process of deposition ,diagenesis and later changes .
根据化学蚀变参数PC值和分离迁移位等将常量元素组分分为敏感组分组、活动组分组、次活动组分组和惰性组分组,不同组分可分别用于讨论层间氧化带低温地球化学中不同问题;敏感组分(变价元素组分Fe_2O_3、FeO)和U在层间氧化带中迁移富集规律明显,Fe_2O_3/FeOFe~(3+/Fe~(2+)比值具分带判别能力,配合U含量对层间氧化带进行较准确的分带,可克服野外宏观颜色分带偏差:提出Fe~(3+)/Fe~(2+)分带判别值在不同盆地、不同地段不同,除受氧化作用控制外,流体酸碱度不同也是重要因素的观点,对找矿实践有实际指导意义;活动组分(Al_2O_3、SiO_2、K_2O、Na_2O)在层间氧化作用过程中具有较明显的活动性,其含量值变化跳跃,在不同分带相互交织,不具分带指示意义;但利用敏感组分、活动组分及其比值在层间氧化带中的变化特征可推测层间氧化带发育的完善程度及其含矿性;次活动组分组(CaO、MgO、MnO_2)含量低,变化规律性差;惰性组分组(TiO_2、P_2O_5)含量低,活动稳定,可用来反映沉积物源特征。
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The invention relates to a method for preventing a top metal layer of packaging chips from fracturing under high temperature, which avoids the fracture of the top metal layer caused by the inter-diffusion of a gold ball, an aluminum welding pad and a top layer metal by introducing a lower metal layer to the joint between the top layer wire and the aluminum welding pad and driving a metal plug to the joint between the top metal layer and the lower metal layer and a metal plug to the joint between the lower metal layer and the aluminum welding pad.
一种防止封装芯片上的顶层金属层在高温下断裂的方法,通过在顶层金属线和铝焊垫之间连接处引入下层金属层,并在顶层金属层和下层金属层之间的连接处以及下层金属层和铝焊垫之间的连接处打金属插塞,避免了因金球、铝焊垫以及顶层金属相互扩散造成的顶层金属层断裂。
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During the first stage of the thermodegradation in nitrogen, the thermal stability of EVA /clay nanocomposites decreases din to the decomposition of octadecyl ammonium and a catalytic effect of acidic sits on the clay lavers deriving from the decomposition.
实验结果表明,通过离子交换反应,可使长链十八胺阳离子嵌入粘土片层间,增大了粘土的片层间距;对于EVA/有机化粘土体系,通过熔体插层可使EVA分子链插层于粘土片层中,使粘土片层被进一步撑开;EVA/粘土纳米复合材料具有较好的力学性能。
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Effects of volume of test panel,length of clad lines,overlapping length,lapping pass number of clad layer and restrictive planten on crack ratio of clad layer were investigated.
研究了试板体积、熔敷层长度、搭接量、熔敷层搭接道数及压板拘束对熔敷层裂纹率的影响,结果表明随试板体积增大、熔敷层长度增加、搭接量增大和熔敷层搭接道数增多,熔敷层裂纹率升高。
- 推荐网络例句
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I will endeavour to find you some assistance.
我尽力帮你找人帮忙。
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At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.
起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像,后来回台湾,甚至去年在北京,居然也四处看见她的海报,才惊讶她的魅力之大。
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Ah may dee:You are chinese living in a democratic country.
你是居住在民主国家的中国人吧。