查询词典 high-performance

Based on the testing analysis of microcosmic digital image, there are smaller Fissions, higher density and even distribution under high confining pressure than under low one. Microcosmic damage mechanics of rock cracking under high confining pressure and hydraulic pressure is given. Reliable testing basis is offered to analyze further failure and stability of the noncircular cave surrounding rock under high confining pressure and high hydraulic pressure.

通过微观数字图像试验分析发现，高围压条件下大理岩断口裂纹长度小、密度大、分布相对均匀，给出高水压高围压作用下岩石破裂产生的微观损伤力学机理，为进一步分析高围压高内外水压条件下非圆形洞室围岩失稳破坏机理提供了可靠的试验依据。

A new method was developed for design of the composite material flywheel with high speed. In this paper ,the method of optimization of shape design for the composite material flywheel with high speed was put forward on the base of the analytical method and research optimization of shape design, and established the models of density optimization of energy and light mass.These models were used to design two typical composite flywheels with high speed in hybrid electrical vehicle flywheel battery and the stress level and convergence on the flywheel were got .Then a new way was developed for optimization of shape design of the composite material flywheel with high speed.

在此基础上对高速复合材料飞轮进行了形状优化设计，将复合材料有限元分析方法和优化设计技术相结合，提出了复合材料的形状优化的方法，分别建立了以高速复合材料飞轮的以储能密度最大为目标函数的形状优化模型和以质量最轻为设计目标的形状优化模型，并以混合动力客车飞轮电池中高速复合材料飞轮作为具体应用，使其在满足强度条件和几何约束条件下，分别寻求其最大储能密度和最轻质量，从而为高速复合材料飞轮的形状优化设计提供参考依据。

The protease activity in foregut was higher than that of midgut in an acidic condition at pH 5.0-5.8, while in an alkalescence condition at pH 7.0-8.6, the protease activity was higher in midgut than that in foregut. The lipase activity of foregut was high and stable in two pH ranges: 4.2-5.0 and 6.2-7.0, and that of midgut was high at pH 3.8, while the lipase lost enzyme activity at pH over 9.0. The amylase activity was high and stable at pH 6.6-7.4 in both foregut and midgut. The cellulase activity of foregut and midgut was high and stable at pH 6.2-7.4 and 5.4-7.0 respectively.

刺参前肠蛋白酶活力在酸性环境下较中肠高，且在反应pH为5.0-5.8之间酶活力相对稳定，而中肠蛋白酶活力在碱性环境下较前肠高，且在反应pH为7.0-8.6之间酶活力相对稳定；刺参前肠脂肪酶活力随着pH的升高出现两个相对稳定的峰值，分别为4.2-5.0和6.2-7.0区间，中肠脂肪酶活力在pH为3.8时达到最大值，而在pH超过9.0明显失活；刺参前肠和中肠淀粉酶活力在pH变化时表现出相似的变化趋势，在反应pH为6.6-7.4之间酶活力较高且相对稳定；刺参前肠和中肠中纤维素酶活力在pH变化时反应不一致，前肠淀粉酶在反应pH为6.2-7.4之间酶活力较高且相对稳定，中肠纤维素酶活力在反应pH为5.4-7.0之间酶活力较高且相对稳定。

Aiming at the attributes of the high speed of cigarette package moving and strong noise in the field environment, the thesis carries out a dynamic imaging mode of random outer trigger and obtains the cigarette package images with high quality and high precision. The median filtering, image segmentation and other techniques of image pre-processing are applied to the character images, and the techniques of pattern recognition are employed to recognize the characters. The thesis optimizes and improves the recognition algorithm to satisfy the requirements of high speed real-time processing system. The whole system can online inspect and take statistics the print quality of the forgery-proof symbols on the outer packing of cigarette, achieving good results.

针对在线打印防伪字符过程中烟包运动速度高、现场环境干扰多等特点，设计了随机外触发动态成像方式，获得了定位精确、画面清晰的烟包图像；运用中值滤波、图像分割等图像处理技术对待识别的字符图像进行了预处理，并运用模式识别技术对字符进行识别；对分析识别算法进行了优化和改进，满足了系统的高速实时处理要求，完成了对烟包外包装防伪字符打印质量的在线检测和数据统计，取得了良好的检测效果。

After more than five years to practice, we Special Bridge, fortes tunnels, urban subway Anwa and conflicting, design and construction of integrated technologies, and rail switch, structural steelwork, OK-mechanical manufacturing technology to maintain a leading domestic level, online, bridges, tunnel, electrification, and other professional key technologies to reach or approach the advanced world level, in high-rise buildings, high-grade highways, high-grade renovation, and new breakthroughs have been made in the field of high-speed railway technology, a person I have no, I have good people, people who I turn, and constantly develop innovative mechanisms, and markedly increase the core competitiveness of enterprises.

经过五年多来的实践，我们在特大桥、特长隧道、城市地铁暗挖和盾构等设计与施工综合技术，以及道岔、钢结构、轨行机械制造等方面的技术保持了国内领先水平，在线、桥、隧、电气化等专业关键技术上达到或接近了世界先进水平，在高层建筑、高等级公路、高档装修、高速铁路等技术领域取得新突破，形成了人无我有、人有我优、人优我转、不断创新的发展机制，明显提高了企业的核心竞争力。

High-order harmonic radiation with noble gas and N〓 in static gas target has been obtained, and the effects on high-order harmonic efficiencies due to laser intensities , polarization, gas densities, confocal parameter, media characteristic and phase mismatch have been discussed. The experimental results show that the high-order intensities grow with the incident laser intensities and gas densities, and high-order harmonic signals amplify in the same time.

高次谐波辐射是强场物理中与电离过程相伴而生另一种重要过程，本文利用飞秒激光在静态气室中获得全部的稀有气体原子以及氮双原子分子5到21次的谐波发射，着重讨论了激光功率密度、激光偏振、气体密度、共焦参数、介质本身以及相位失配对高次谐波转换效率的影响。

From 6860 to 3170 cal.yr BP,semi-desert steppeexpanded,regional montane forest steppe retreated,suggesting a prolonged warm and dryclimate.Between 3170 and 2340 cal.yr BP,regional forest steppe expanded whereassemi-desert steppe retreated,indicating the climate became cool and wet gradually and thehumidity reached the maximum at the end of this stage.During 2340～1600 cal.yr BP,Poaceae steppe dominated whereas wetland meadow expanded and the montane forest stepperetreated,suggesting a cool and wet climate prevailed,wormwood grass steppe prevailed andthe climatic instability increased after 1600 cal.a BEThe climate and environmental reconstructions by pollen were supported by the diatomrecords.A relative high lake level and moister climate prevailed between 8660 and 7230 cal.yr BP as inferred by the dominance of planktonic diatom genera and high planktonic/benthicratio (〉40).low lake level and dry climate sustained during 7230～2330 cal.yr BP assuggested by the low abundance of planktonic diatom and low planktonic/benthic ratio ～20and the lake returned to high level during 2330～930 cal.yr BP as inferred by there-dominance of the planktonic diatom and the high value of palnktonic/benthic ratio.The pollen-based climate reconstruction was also consolidated by the grain size andPediastrum concentration records.

Ugii Nuur湖周围现代孢粉研究表明：松属为空气传播的外来花粉，其含量变化可能指示了远山森林草原发育状况；禾本科具显著低代表性，母体植物建群时含量通常在10％以下：藜科花粉含量可以指示区域气候干旱程度。2、以现代孢粉研究为基础、可靠AMS~(14)C年代为框架，Ugii Nuur孢粉记录高分辨率地重建了蒙古国中部地区过去8660 cal.yr BP以来的植被和气候变化。8660～7800 cal.yr BP研究区植被为禾草草原，湖畔及河谷低地发育苔草草甸，远山发育松属针叶林和森林草原，气候温和略湿润；其中8350～8250 cal.yr BP湿生草甸扩张，旱生植物成分减少，气候凉湿。7800～6860 cal.yr BP旱生成分增加，气候转向暖干。6860～3170 cal.yrBP半荒漠草原扩张，远山森林草原退缩，山地草原和河谷及湖畔湿生草甸退缩，气候持续暖干。3170～2340 cal.yr BP半荒漠草原退缩，远山森林草原扩张，气候转凉变湿，末期湿度条件达最佳。2340～1600 cal.yr BP禾草草原发育，湖畔及河谷低地湿生草甸扩张，远山森林草原略有退缩，气候总体较凉湿。1600 cal.yr BP以来研究区发育禾草-冷蒿草原，气候波动较大。

Since high carbon alloy steels is HRC 55~65 in hardness and 1.5%~2.5% in Carbon Equivalent, high-carbon-alloy-steel surfaced metals generally were selected in order to maintain high hardness and wear resistance of weld repaired layer, of which high-carbon Cr-Mo-W surfaced metal had been most widely used with 300~500℃ preheat or heat-treat after welding to improve its crack resistance.

由于高碳合金钢的碳当量高达1.5％～2.5％，硬度一般为HRC55～65，为了保证修复层的高硬度和耐磨性，焊接材料常选用高碳合金钢质堆焊金属，目前最普遍采用为高碳Cr－Mo－W系堆焊金属，但必须采用350～500℃高温预热焊和焊后热处理工艺措施以保证其具有一定的抗裂性。

Datacolor company's main production for electricity, chemicals, petroleum, metallurgy, shipbuilding, railways, nuclear power, military and other basic industrial sector control system used special cables, including fire-resistant fire-retardant series, cross-linked column, high temperature series resistance, low temperature series, radiation-resistant series, waterproof series, Low Smoke low halogen series, low smoke zero halogen series more than a dozen major categories, such as nuclear power stations with cables, military cables, towing cables, specifically to replace imported cables, waterproof underwater cables, electronic computer shielded cable, control cables, low smoke zero halogen cable category, compensation wire, cable, high-temperature fire cable, high-frequency heating and hot with cable, RF cable, high flexible cables, the security cable, instrument signal cables, marine cables, Oilfield cables, signal cables, communication cables, sensor cables, control cables, power cables, thermocouple, thermal resistance and so on.

德塔公司主营生产用于电力、化工、石油、冶金、船舶、铁路、核电、军工等基础工业部门控制系统中所采用的特种电缆，包括耐火阻燃系列、交联系列、耐高温系列、耐低温系列、耐辐射系列、防水系列、低烟低卤系列、低烟无卤系列等十几个大类的核电站用电缆、军工电缆、拖曳电缆、专门替代进口电缆、水下防水电缆、电子计算机屏蔽电缆、控制电缆、低烟无卤类电缆、补偿导线、电缆、高温防火电缆、高频加热和伴热电缆、射频电缆、高柔性电缆、本安电缆、仪表信号电缆、船用电缆、油田电缆、信号电缆、通讯电缆、传感器电缆、程控电缆、电力电缆、热电偶、热电阻等。

First super-low specific-speed centrifugal pump has a long and narrow flow passage for its high head and low capacity, and the power absorbed by disc friction is too high, so the efficiency is very low; Secondly the diffusion of flow passage is so high, that the reserved flow often emerges at the inlet and outlet of impeller. Therefore the H ~ Q characteristic curve is often hump-shaped, and at the low-capacity operating condition the instability often occurs; Thirdly the centrifugal pump at high-capacity operating condition is easy to overload because the N ~ Q curve appears a rising trend.

首先由于它的扬程较高、流量较小，所以它的流道狭长，圆盘摩擦损失较大，效率相对较低；其次由于它的流道扩散较严重，易在叶片进口产生回流和在出口产生脱流，扬程流量特性曲线易出现驼峰，在小流量工况下易产生不稳定现象；第三，由于其功率流量曲线呈现上升趋势，在大流量区运行时电机易过载。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。