效率高

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。

For high octane number fuels, it was found that when an additive named as DTBP is added to RON90 and iso-octane, the HCCI operation ranges could remarkably expand to lower temperature and lower engine load.

针对高辛烷值燃料不容易压燃的缺点，本文在RON90燃料和异辛烷中加入一定比例的过氧化二叔丁基，达到了控制高辛烷值燃料着火时刻、提高燃烧效率、降低排放的目的。

Friction stir welding is a new solid state welding technique under the actions of mechanical forces and frictional heat. FSW has many advantages on the aspects of mechanical properties and producing efficiency, such as high strength, low defect, no pollution, etc. FSW can be used to join the buttcover plate and lap jointed sheeting of many materials, such as aluminium alloy, magnesium alloy, copper alloy, etc.

搅拌摩擦焊接是一种在机械力和摩擦热作用下的新型固态焊接技术，在接头力学性能和生产效率上具有较高的优越性，具有低缺陷、高强度以及环保等特点，同时，搅拌摩擦焊接技术可以对包括铝合金、镁合金、铜合金等多种材料的板状构件实现对接或搭接，另外，搅拌摩擦焊接可以较容易实现异种材料的连接。

Stiff and light, extremely efficient, JBL's new My-Ti tweeters deliver the high-frequency extension of titanium domes with the damping of composite diaphragms.

刚性和轻，效率非常高，聆听新的我国钛高音提供高频率延伸钛穹顶与阻尼的复合膜。

By means of the plating technology and the system designed and made ourselves, we call them as the direct-heat evaporating roll-pulled with vacuum piston and the helix evaporating of straight heat-wire with the negative thermal specific resistance , the align polishing ring films and the separating ones of pure gold have been plated directly at the inner wall of the capillary of Sealed-off CO〓 laser.

简便有效地使器件的输出功率、光束品质、稳定性和使用寿命都得以提高的作用效果；分析了放电驱动催化机理及催化效果与器件参数、工作状态及其中的等离子体过程的对应关系，建立了数学模型，编程数值计算了放电管内正柱区中等离子体参数分布及其与器件工作外参数的关系；利用我们设计开发的直热式真空活塞卷拖和负阻直热丝螺旋蒸镀工艺及制作的系统，在封离型CO〓激光器毛细管玻璃内壁上直接镀制出了单质金的镜面环膜和离散膜，经理论分析和实验检验，指出美国专利4756000号的环金方案将导致器件工作特性的改变和恶化，降低效率；肯定了正柱区边界部分场对建立良好的激光振荡的作用意义，明确提出了①作为高品质器件设计基础的弥散膜催化剂；②高斯管型弦驻波振动定型磨制、检测的新概念及相应的制备加工工艺；实际制出了管子，测定了其基本的工作特性和初期过程。

It really has excellent electrical parameters like super-stable output voltages, good efficiency, low voltage ripple at high output power, but it is so loud at high loads that I doubt youвd want to use it not only at home but even in office.

它真的具有优良的电气参数一样，超稳定的输出电压，效率好，低纹波高输出功率，但它是如此响亮在高负荷，我怀疑你в四要利用它不仅在家中，但即使在办公室的。

The first industrial production teflon thin film majority uses have re-equipped the plank veneer peeling lathe turns on lathe cuts the processing, this traditional veneer peeling lathe uses the mechanical drive control generally, produces not only the thin film the quality is not high, the reliability is bad; Moreover in the production process the noise is big, consumes energy much, the production efficiency is not high, is unable to adapt the now industrial production demand.

目前工业生产的聚四氟乙烯薄膜大多数使用改装过的木板旋切机旋切加工而得，这种传统旋切机一般采用机械传动控制，生产出来的薄膜不仅质量不高，可靠性差；而且生产过程中噪音大，耗能多，生产效率不高，无法适应当今的工业生产需求。

The first industrial production teflon thin film majority uses have re-equipped the plank veneer peeling lathe turns on lathe cuts the processing, this traditional veneer peeling lathe uses the mechanical drive control generally, produces not only the thin film the quality is not high, the reliability is bad; Moreover in the production process the noise is big, consumes energy much, the production efficiency is not high, is unable to adapt the now industrial production demand.

The 第一工业生产聚四氟乙烯打开车床裁减处理，这台传统表面饰板削皮车床一般使用机械驱动控制，生产不仅质量不是高的薄膜，可靠性是坏；而且在生产过程中噪声大，消耗能量，生产效率不是高的，无法适应现在工业生产demand。

Not only in low or wide temperature condition but also in higher temperature, Pt-Rh/Ce-Zr-Sr/Al_2O_3 can show high specific surface area raio and excellent stability. It is considered as the best catalyst, which has a promising industry application prospects.

和Sr含量为3 wt。%时，其催化活性达到最高，实现了在较低的温度和较宽的温度窗口具有较高的催化活性NO_x转化效率达到53%在高温条件下也显示了高比表面积和高稳定性。

Experimental result makes clear , this algorithm can produce the reseau of high quality , have taller executive efficiency .

实验结果表明，该算法能产生高质量的网格，具有较高的执行效率。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了