power tunnel meaning in English
发电洞
水电站引水隧道
Examples
- Power tunnel alignment optimization design for zipingpu water conservancy project
紫坪铺水利枢纽工程引水发电隧洞轴线优化设计 - In optical fiber aspect , the incident beam can be collimated , converted and focused by some kinds of lenses , making the mode of incident beam matched with or near the optical fiber ’ s modes . in this thesis , thorough theoretical analyses and experimental investigations were made for the external optical properties of a 980nm high - power tunnel junction regenerated multi - active - region quantum well stripe - geometry algaas / gaas / ingaas ld and three different stripe - width 980nm high - power
本论文围绕本实验室研发的新型隧道再生多有源区980nmalgaas / gaas / ingaas量子阱大功率半导体激光器和多种条宽的单有源区980nmalgaas / gaas / ingaas量子阱大功率半导体激光器的光场外特性、单模阶跃折射率光纤和多模渐变折射率光纤的模场特性进行了深入的理论分析和实验研究。 - Abstract : through a series of hydraulic model tests for researching actual power tunnel operation , a conclusion is reached that in order to get a better flow pattern the profile of the wate - carrying structure should be adapted to the variation of water streamline shrinkage , flow velocity and pressure intensity . the configuration and dimension of the kinetic energy dissipator should be selected carefully to make the water tunnel safe and reliable at different levels of diversion dischage
文摘:针对实际工程中的发电引水隧洞运行的各种工况进行了水工模型试验研究，指明要获得良好的水流流态，过水建筑物各部位结构轮廓的造型应适应水流流线的收缩、流速及压强的变化；为使引水隧洞在各级引水流量下能安全可靠地运行，需慎重确定洞内消能工的体形和尺寸。 - By use of g . d . shen ' s tunneling cascade theory we have fabricated high performance and high power tunneling cascade ingaas / gaas / algaas 950nm / 990nm double wavelength strained quantum well lasers on the basis of former tunneling cascade high power lasers and high brightness light emitting diodes . the lasers " two peak wavelength are 95 ? nm and 990 ? nm . el spectrum ' s fwhm is 3nm
在以往隧道级联大功率应变量子阱激光器及高亮度发光管的理论研究与实验的基础之上，采用沈光地教授提出的隧道级联思想，成功研制出基于ingaas gaas algaas材料的高性能大功率隧道级联950nm及990nm双波长应变量子阱激光器，激射波长分别为952 2nm和990 2nm ， el谱的谱线宽度约3nm ，未镀膜器件单面最大输出光功率可达2w以上，阈值电流最低达120ma 。