| 1. | These jets are usually either endplate or contraction types .
这种实验段通常有端板型的或收缩型的。 |
| 2. | The construction quality control of cement stabilized macadam
丹本高速公路水泥稳定碎石基层实验段施工技术分析 |
| 3. | The main primary way to do that is to enhance the feed back precision ; choose excellent electromotor ; adopt advantage control technology
其基本途径是：提高实验段风速v的反馈精度；选择性能优良的电动机；采用先进的控制技术。 |
| 4. | Finally a non - destructive detecting way is established to examine the quality of impermeable wall that proved to be effective by actual engineering
最后，建立了完整的堤坝防渗墙检测方法，并通过在实验段的实际应用，证明了此方法的有效性。 |
| 5. | Low speed wind tunnel experiment requires strict of the wind speed , which requires a wild range of wind speed , high precision , and quick adjustment
低速风洞实验要求对实验段的风速有严格的控制，要求风速调节范围宽，精度指标高，调节速度快。 |
| 6. | The turbine cascade test sections and turbine blades were set up according to the geometry provided by gas turbine establishment of china . experimental measurements were carried out in a large - scale low speed wind tunnel in northwestern poly - technical university
本文根据中国燃气涡轮研究院提供的叶型数据设计并加工了叶栅通道实验段以及试验叶片，实验研究在西北工业大学的大尺寸低速叶栅传热风洞中进行。 |
| 7. | The result that the experimental sector has stable wind flow and the characteristic of wind speed which makes the wind speed more consistent with real condition of the surface of land has the rule of logarithm , which is matched with the requirement of wind erosion experiment
通过试验验证，风洞实验段具有稳定的气流场，且风速廓形满足对数规律，符合自然大气近地面层的风速特征，说明风洞满足风蚀试验要求。 |
| 8. | Besides to control rotate speed of electromotor , the control system adjusts wind speed , substantively it is the control of speed press ( v2 = 2q / p ) . so , flow field control system adjusts speed press through the control of rotate of electromotor
风洞流场控制系统除对电动机转速调节外，主要控制风速v ，实质上就是控制其速压q ( v ~ 2 = 2q p ) ，所以，风洞流场控制系统是通过控制电动机转速，来调节实验段内的速压。 |
| 9. | ( 1 ) the designed wind tunnel has the separate structure . not only every sector of the tunnel can be separated but also the experiment sector can separate to 9 steel boards . all of the separate tunnel can be transferred and transported with a beijing 1041 truck
风洞设计有以下优点： ( 1 )风洞设计为分体结构，不但风洞各段能够拆开，而且实验段可拆开为9块钢板，被拆开后的风洞可以全部装在一辆北京1041汽车上实现转移和运输。 |
| 10. | But the influence trend of the maximum rolling angle and the rolling period was not so simple , it was because the influence of which embodied in the phase relationship of mass flow and the pressure drop across the tube . the d - partition method was developed to separate the test tube into four regions and the drift flow model was imported into the two phase region , based on which the solution of the response of the pressure drop of tested tube to the inlet mass flow perturbation can be obtained
在不摇摆和摇摆工况下，采用d分区法对实验段进行分区，在两相区采用漂移流模型对实验段的压降对入口流速扰动的响应进行了求解，给出了各区压降响应的表达式，进而得到了在不摇摆和摇摆工况下，压降与入口流速扰动之间的传递函数。 |
