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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。

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。

The shockwave of the meteorite strike on the terrane of the surface passes the dynamic energy to the surface and forms the target terrane shatter cone; due to the fact that the terrane of stricken surface can not maintain the state of stress, a cluster of rarefaction wave was formed behind the shockwave to decompress terrane substances from high pressure state, this cluster of rarefaction wave ejects with high speed from the interface between the substances such as meteorite, surface terrane and lava, the shockwave compresses the target terrane substances, generating super-high temperature and forming a jet current of rock mass, rock powder, lava or rock fog with high pressure and temperature, the jet current lasted until the shockwave rebounded from the backside of rock, and the target of meteorite-stricken surface is formed on surface.

陨石撞击地面岩层时的冲击波把动能传给地表产生靶岩震裂锥，由于被撞击地表岩层不能维持应力状态，冲击波后面就发展一簇稀疏波使岩层物质从高压状态下减压，在陨石、地表岩层、熔岩等物质交界处高速喷出，冲击波压缩靶点岩层物质产生超高温，成为压力大温度高的岩块、岩粉、熔岩或岩雾喷射流，直到冲击波从岩石背侧反射、地面上形成陨击靶点。

Therefore, the low-income low-consumption with economic growth sluggish and inefficient; the high-income consumer with the high economic growth in the high-yield and high-quality.

所以，低收入低消费伴随着经济增长的滞缓和效率低下；高收入高消费伴随的是经济增长的高产出和高质量。

Model YTR150 rotary pile drill is another high performance rotary pile drill developed on the basis of model YTR230, featuring high torque, high maneuverability, low noise, low pollution, high operation efficiency and easy maintenance. The major specifications have reached those of foreign similar products. Model YTR150 rotary pile drill adopts hydraulic retractable crawler chassis made by Caterpillar. Its mast is lifted and lowered in full range with verticality automatically adjusted. Operating status parameters displayed by touch screen and monitor. Hydraulic pilot control is used for overall machine operations and load sensing hydraulic system and programmable logic controller are adopted to implement automation for easy and agile operation.

YTR150型旋挖钻机是在YTR230的基础上开发出来的又一种高性价比的旋挖钻机，具有大转矩、机动灵活、低污染、低噪声、施工效率高及维护方便等特点，主要性能参数达到国际同类产品水平YTR150型旋挖钻机采用了卡特彼勒生产的液压可伸缩式履带底盘，桅杆全程自动起落，自动调整桅杆垂直度，触摸屏和监控器可以直接显示工作状态的参数，整机操纵上采用液压先导控制，采用负荷传感液压系统和可编程控制实现自动化，使用方便灵活。

Jean de marle montague and bule bell had high net photosynthetic rate P(subscript n, transpiration rate T(subscript r and stomatal conductance G(subscript s, and showed high photosynthetic and potential productivity. The two cultivars also had low light compensation point and high light saturation point, showed high capacity for using light.

品种红粉玉蝶、井岗紫霞具较高的净光合速率、蒸腾速率和气孔导度，表现出较高的光合作用能力和生产潜力；同时这2个品种又有较低的光补偿点和较高的光饱和点，表现出较强的弱光利用能力和强光利用潜力。

The paper reviewed the application of high gravity brewing in breweries in detail,and the features of high gravity brewing process,the preparation of high gravity worts as well as selection of syrups which suit to high gravity brewitn were summarized.

对高浓酿造技术在啤酒工业中的应用进行了较为详细的论述，总结了高浓酿造的特点、高浓麦汁的制备、啤酒酿造糖浆的选择等。

The main products are: SJG series of fixed snorkels platform, SJG series of fixed lifting platform, SJG series of fixed snorkels Huoti, SJY series of scissors-type high-altitude platform, GTL series aluminum alloy high-altitude platform, GTT series sets of cylinder-type high-altitude Platform, GTZ / GKT Qubi series of high-altitude platform, and so on dozens of products, thousands of specifications and can be customized to customer requirements.

主要产品有：SJG系列固定液压升降平台，SJG系列固定举升平台，SJG系列固定液压升降货梯，SJY系列剪叉式高空作业平台，GTL系列铝合金高空作业平台，GTT系列套缸式高空作业平台，GTZ/GKT系列曲臂式高空作业平台等数十种产品，数千种规格，并可按客户要求进行定制。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。