查询词典 variable compression ratio

Sample 1 had no phenomenon of pulling-out and debonding of fibres under vertical compression load and the interface bonding intensity is strong between the fibres and the matrix. The material shows brittle fracture: if σ(subscript ⊥)=60.7MPa. However, sample 1 has the phenomenon of fibres debonding because of the shearing stress between the fibres and the matrix under parallel compression load. The material shows tough fracture:σ(subscript ∥)=52.6 MPa.

试样l在垂直纤维层方向压缩载荷作用下，没有出现纤维的拔出、脱粘等现象，界面结合较强，材料呈现脆性断裂：σ=60.7MPa；而在平行纤维层的压缩载荷作用下，纤维与基体存在剪切作用，存在纤维的脱粘，试样呈现韧性断裂：σ=52.6MPa。

Results A closure of the mitral and tricuspid valves with simultaneous opening of the aortic valve occurred exclusively during chest compression, resulting in forward blood flow in the pulmonary and systemic circulation. Peak forward aortic flow at a velocity of 58.8±11.6?cm/s was recorded during the compression phase.

结果 所有的6例病人，胸按压时，二尖瓣和三尖瓣关闭，同时主动脉瓣开放，前向血流自心室进入体循环和肺循环；发生在胸按压时的主动脉瓣峰值前向血流速度为58.8±11.6？

The stress-strain index under torsion, three-spot bending and compression of the complete fresh tibia was determined with the vertical compression stress 0-1 000 N, torsion angle 0°-3°, and three-spot bending stress

测定完整的新鲜人胫骨在扭转、三点弯曲、压缩等状态下的应力-应变指标，确定垂直压缩应力为0~1 000 N，扭转角度为0°~3°，三点弯曲应力为

Models of middle-segment oblique fracture without defects were established and fixed by 14-hole stainless steel AO limited contact-dynamic compression plate, using 6, 10, and 14 screws separately. The stress-strain index under torsion, three-spot bending and compression of the complete fresh tibia was determined again statistical analysis.

然后制成中段斜行无缺损骨折模型，以14孔不锈钢AO有限接触型动力加压接骨板固定，分别使用6， 10， 14枚螺丝钉，测定扭转、三点弯曲、压缩等应力－应变指标，进行统计学分析。

In order to compare the performance of electric-driven compression type refrigerating machine and steam-driven lithium bromide absorption machine,defines a modified performance coefficient—equivalent performance coefficient based on the analysis of existing indices for electric-driven compression type refrigerating machines.

为便于比较电动压缩式制冷机与蒸汽溴化锂吸收式制冷机的性能，在对现有制冷机性能评价指标分析基础上，提出了修正后的电动压缩式制冷机的性能系数———等效性能系数。

The results show that:(1) The space-charge fields(include dc space-charge fields and ac space-charge fields) have important effect on the beam-wave interaction output power, make the saturated output power lower, saturated position delay;(2) The back-radio excited by the electron beam has little effect on the output power, and can be ignored;(3) The transverse motions of electron beam has some effect of the output power;(4) The means of phase velocity taped and bunch compression can improve the relativistic TWT efficiency, especially bunch compression can greatly improve the efficiency.

五、分析了相对论行波管三维非线性特性，分析结果表明：(1)空间电荷场（包含直流和交流空间电荷场）对注波互作用输出功率影响很大，会造成饱和输出功率减小，饱和位置推后；(2)电子注激发的反向辐射对输出功率影响比较小，基本上可以忽略不计；(3)电子注横向运行对注波互作用的直接影响比较大；(4)通过改变耦合腔内半径来调节慢波结构相速，采用相速跳变和预群聚的方法可以改善相对论行波管的效率，特别是采用预群聚方法，可以尽量提高相对论行波管的效率。

A rate-distortion model is presented in order to make use of the down channel of deep space effectively and analyzed the error of image loss compression exactly.It is fit for CCSDS image compression standards based on wavelet transform.

为了能更好地利用有限地深空通信下行信道资源，更准确地分析图像有损压缩的失真大小，提出了一种适合于CCS-DS基于小波变换图像压缩标准的速率-失真模型。

A rate-distortion model is presented in order to make use of the down channel of deep space effectively and analyzed the error of image loss compression exactly.It is fit for CCSDS image compression standards based on wavelet transform.

中文摘要：为了能更好地利用有限地深空通信下行信道资源，更准确地分析图像有损压缩的失真大小，提出了一种适合于CCS-DS基于小波变换图像压缩标准的速率-失真模型。

Based on characteristics of L-shaped short composite column of concrete-filled square steel tubes, research on calculation method and ultimate load-carrying capacity under axial compression for the special-shaped column is done by three methods: superposition theory, finite element analysis and axial compression test.

在分析L形方钢管混凝土组合异形柱特点的基础上，通过理论计算、有限元分析和轴压试验，对L形组合短柱的计算方法和轴压极限承载力进行研究。

On the basis of above-mentioned theory, Lime rock specimens indifferent scale series from Hebei Jingxing is tested under uniaxial compression.Besides, through numerical simulation and test of coal specimens from Datongand Luan scale effects rule is found out. And that, physical and mechanicalcharacteristics of specimens are studied under uniaxial compression.

基于上述理论认识，通过对室内不同尺度系列的井陉石灰岩单轴压缩试验和数值模拟，以及对大同、潞安的有关煤样试验，得出了尺度效应相关规律，并对岩样在单轴压缩过程中相应的物理力学现象进行了分析研究。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。