次轴

The second-harmonic generation theory of phase aberrated laser beam in uniaxial crystals is discussed, in cluding the effects of diffraction and transverse walkoff.

理论上研究了单轴晶体Ⅰ类匹配时相位畸变光束二次谐波的转换，其中考虑了衍射、离散效应，给出了相位畸变小信号解。

Yet again the medieval castle is infested with unwanted cats… You have been drafted by the king to rid the castle of all the pesky little cats.Armed with a baseball bat you must gently coax the cats over the wall to freedom, trying not to hurt the little blighters on the way.

又一次的中世纪城堡是带有不想要的猫……你已经起草了由国王摆脱城堡的所有讨厌的小cats.armed与棒球您必须轻轻同轴猫超过墙上的自由，试图不伤害小blighters对未来路向。

Since the machine was designed to focus on heavy load, rack of large steel, Z-axis stroke big, so not only do a small engraving machine technology, but also high-speed cutting thick plate, a feed volume of up to 20mm-30mm, which is carving machine not impossible process.

由于机器设计注重重型负载，机架钢性大，Z轴行程大，因此不仅可以做小型雕刻机的工艺，更可高速切割厚的板材，一次进刀量可达20mm－30mm，这是雕刻机根本做不到的工艺制造。

Coiling school） traction from your feed to your feed roll axis this part of the tensility control is an important issue.

卷存部（从收料牵引辊到收料轴之间）这部位的不压力把持也是一个次给课题。

In operation, the downhole devices will be laid down with tubings which will move up and down using the operation machine. Since the injection head can rotate in the determined speed, the rotating flow, compared with the conventional stable axial flow, can prevent the sands from depositing in the horizontal annular and washing the screen. The jet from high-efficiency jet nozzle will wash the screen directly with concentrated hydro-power. The working fluid can be clean water, without damage to the formation.

作业时用油管下入该井下装置，利用作业机带动油管上下移动，由于喷头可按照既定速度旋转，返回流体在水平段由常规的平稳轴向流动变为旋转流动，既可实现对防砂管的全方位解堵，又能避免砂粒沉积；高效喷嘴产生的射流直接对着防砂管冲击，能量集中；工作介质为清水，不会对地层带来二次污染。

In operation, the downhole devices will be laid down with tubings which will move up and down using the operation machine. Since the injection head can rotate in the determined speed, the rotating flow, compared with the conventional stable axial flow, can prevent the sands from depositing in the horizontal annular and washing the screen. The jet form high-efficiency jet nozzle will wash the screen directly with concentrated hydro-power. The working fluid can be clean water, without damage to the formation.

作业时用油管下入该井下装置，利用作业机带动油管上下移动，由于喷头可按照既定速度旋转，返回流体在水平段由常规的平稳轴向流动变为旋转流动，既可实现对防砂管的全方位解堵，又能避免砂粒沉积；高效喷嘴产生的射流直接对着防砂管冲击，能量集中；工作介质为清水，不会对地层带来二次污染。

For example: We have for the automotive industry supporting the drive screw, which are electrically adjustable car seat before and after the parts about the heart; used phosphating, dacromet surface secondary treatment process for the automotive tubing supporting bolts and installed in the car wiper The long and short axis, such as spherical products; In addition, refined diesel engines plus workers on the cylinder head bolts, nuts; Road fork dedicated nut bolts, nut; for the furniture industry, supporting the tensile nut, screw legs, lengthened Screw; for internationally renowned companies provide a range of standard, non-standard special-shaped screw components; for oil and electricity sectors complementary hot galvanized fasteners and other products.

我们为汽车行业配套的传动丝杆，它是轿车电动调节座椅前后、左右的心脏部件；采用磷化、达克罗等表面处理工艺为汽车二次配套的油管螺栓和安装在汽车雨刮器的长、短球面轴等系列产品；另外，精切加工的柴油发动机上的缸盖螺栓、螺母；道叉专用防松螺栓、螺母；为家具行业配套的拉伸螺母、四脚钉、加长螺杆；为国际知名公司提供的各类标准、非标异形螺纹零件；为油井及电力行业配套的热镀锌紧固件等系列产品。

Main products has: Entire voluntarily burn oil hot wind machine , full-automatic fire coal hot wind machine , semi-automatic fire coal hot wind machine , wet curtain , large-scale wind machine (be used for the factory, raise livestock , flowers and plants waits for lieu to cool down , is ventilated), greenhouse special use circular current wind machine , axial-flow type ventilating machine , carbon dioxide generator , plant diseases and insect pests ozone prevention and cure machine after eight big series more than 30 species products.

主要产品有：全自动燃油热风机，全自动燃煤热风机、半自动燃煤热风机、湿帘、大型风机（可用于工厂、畜牧、花卉等场所降温、通风）、温室专用环流风机、轴流式通风机、二氧化碳发生器、病虫害臭氧防治机等八大系列三十多种产品。ZR系列风机具有先进的整体集流器设计与一次成型热镀锌铝板扇叶，具有低噪音、高节能、耐腐蚀、运行平稳，寿命长等特点。产品畅销北京、上海、广东、云南、辽宁、湖南、湖北、河北、江苏、浙江等20多个省、市、自治区，以过硬的质量和良好的售后服务，赢得了专家的好评及广大用户的信赖。

The long wheel base Range Rover LSE showcases a number of 'firsts' for an off-road vehicle including air suspension and electronic traction control.

以长轴距为基础的揽胜LSE创造了越野车一系列的&第一次&，包括空气动力系统和电子牵引力控制系统。

This cone of concentricity and face runout vertical degree and CNC machine tools with a common location in a process out of the valve stem is easier to FILTER SERIES ensure design accuracy, while reducing the processing cost.

这样锥面的同轴度和端面的垂直度和跳动度用普通数控机床可以在一次定位中加工出来，阀杆的设计精度就比较容易保证，同时降低了加工成本。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。