查询词典 tunnel

The high efficiency and high power semiconductor laser with multi-active regions which are cascaded by reverse biased tunnel junction has a higher inner quantum efficiency which can larger than 1, so that it can output higher optical power at the same injected current compared with the normal lasers, meanwhile, it can be designed to large coupled optical cavity, so it will increase the limit of the electro-thermal destroy and the COD.

通过反向偏置隧道结将多个有源区级联起来的多有源区耦合大光腔高效大功率半导体激光器从理论上解决了传统激光器存在的问题，由于其内量子效率大于1，可以在相同电流下输出高的光功率，且可以制成耦合大光腔结构，增大了光腔面积，因此相对于传统激光器而言，其电热烧毁和COD水平都会提高。

You will have to rewire the indicator; the tunnel is created automatically as the wire leaves the loop.

你将必须重新连线，当连线离开循环时将自动地创建一个隧道。

The paper expresses aerodynamic optimization design of lower Reynold number high-lift airfoils using genetic algorithm,wind-tunnel experimental of design airfoil tests correctness of design.

利用遗传算法进行了低雷诺数高升力翼型的气动优化设计，并利用风洞实验检查了设计的正确性。

Riblet surface' flow field were tested separately in low speed wind tunnel and distribution of turbulent boundary layer flow parameters was obtained.

在低速风洞中对制备的脊状表面进行流场测试，获得了其湍流边界层内流动参数的分布情况。

To understand the effect of structure of riblet surface on properties of wall, the apparent contact angle of riblet surface was measured and drag reducing effect of riblet surface was confirmed by water-tunnel experiment.

为了得到脊状结构对壁面物性的影响，对脊状表面进行了疏水性测试，获得了液滴在脊状表面上的表观接触角，并通过水洞试验验证了脊状表面的减阻效果。

Concerning with specialty of structure and flow characteristic of turbulent boundary layer over riblet surface,the testing method of turbulent boundary layer's flow parameters of riblet surface is studied deeply.The win tunnel and testing equipments used in this experiment are improved accordingly and feasible approaches to enhance experimental veracity are also discussed.

针对脊状表面的结构特点及其湍流边界层的流动特性，深入研究了基于热线技术的脊状表面湍流边界层流动参数的测试方法，对所使用的风洞及测试设备做了相应改进，并探讨了提高实验测试精度的可行性措施。

Riblet ; turbulent drag ; reduction wind tunnel test

沟纹薄膜；湍流减阻；风洞实验

The mean velocity distributions in turbulent boundary layers of smooth surface and two different riblet surfaces are measured with IFA300 constant-temperature anemometer in low-speed wind tunnel to validate the full development of turbulent boundary laye. Friction velocity and wall friction stress of turbulent boundary layer are obtained with the least-squares fitted curve of the sublayer velocity distribution based on Spalding formula, and virtual origin position of riblet surface can be acquired accurately.

在低速风洞中来流速度一定的情况下使用IFA300恒温热线风速仪测量了光滑表面和两种不同尺寸的脊状表面湍流边界层平均速度分布剖面，并验证了试验段湍流发展的充分性；通过应用Spalding壁面公式使用最小二乘法精准拟合了实验测量的边界层内层速度分布曲线，得到了湍流边界层壁面摩擦速度并进一步求得湍流壁面摩擦应力，较准确地计算出脊状表面的虚拟原点位置，并通过与对数律公式拟合结果比较分析，证实了该方法更加准确有效。

For the case of the joint actions of the right-angled waves and current,the current has large effect on the motions of the tunnel element.

对于正向波流联合作用的情形，水流对管段的运动有很大的影响。

The filling speed ranges from 120BPH to 3,000 BPH,Rinser/Filler/Capper Monoblock,Automatic Loading Machine,Barrel Otuside Washer,Barrel Inside Washser,Filler/Capper Machine,Decapper,Heating Shrink Tunnel,Conveyor System,Complete Line Control System.

包括以下可选设备：洗桶/灌装/封盖三合一机自动上桶系统、桶外清洗机、桶内清洗机、灌装/封盖机、拔盖机、套膜热收缩隧道、输送链及自动化系统、整线自动控制系统。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。