| 1. | Thirty and ninety days feeding tests 天和90天喂养试验 |
| 2. | Feeding test for 90 days 天喂养试验 |
| 3. | Feeding test for 7 days 天喂养试验 |
| 4. | Experiment results show that the high power supply quality rectifier meets supply need of ac drive reciprocal power fed test rig 实验结果表明,该高供电品质整流电源符合交流传动互馈试验台的供电要求。 |
| 5. | Based on slip frequency control strategy for the mutual - feed test bed , it is studied the regulation of traction motor speed as well as the analog load resistance torque with analog load 摘要针对互馈试验台,基于转差频率控制策略,研究了牵引电机侧速度的调节和负载模拟侧阻力矩的调节。 |
| 6. | Through the developed mutual - feed test bed , it is proven that the control program features accurate speed regulation and is capable of load simulation at different locomotive working modes , which reaches the requirement of high power test system 最后通过研制的互馈试验台证明该控制方案可以精确调速,同时能够模拟机车各种工况下的负载,满足大功率试验系统的要求。 |
| 7. | The author analyzed test signals and steps of each display test standard , and drew the meaningful contents for fed tests . finally , test technologies and evaluation methods were creatively established . the test standards and evaluation methods were verified by lab - made 25 inch fed panel 根据所提出的fed整机和显示屏参数的测试方法,建立fed整机参数和fed显示屏像元的光电特性的测试系统,包括测试仪器设备、信号源和供电电源,实际测试了本实验室制作25英寸彩色fed显示器。 |
| 8. | By analying the requirement of traction characteristics of rectifier in ac drive reciprocal power - fed test system , in this paper , the research on high power supply quality rectifer is conducted around topology and mathematical modeling , high power supply quality rectifer ' s control methods are summarized . predicted current control based on space vector pwm in two - phase stationary coordinates is proposed and used in this paper 本文分析了交流传动互馈试验系统牵引特性对整流电源的要求,对高供电品质整流电源的拓扑结构和数学模型进行了研究,总结了高品质整流电源的控制方法,阐述了本文采用的两相静止坐标系下基于空间矢量脉宽调制的预测电流控制方法。 |
| 9. | The insect feeding test indicated that the development of lymantria dispar was clearly put off , in which the insects feeded transgenic plants were 2 ages , when the insects as the control were 4 ages after treating 15 days . besides , the insect growth was restrained , that the weight of insect as control was 9 . 7 and 6 . 4 times compared to the treated ones . it also resulted that the foreign gene could normally express in the transgenic plants by displaying insect resistance in a certain degrees 舞毒蛾幼虫发育推迟, 15天时处理为4龄,但对照仍为2龄,发育推迟了2个龄期;舞毒蛾生长受到抑制,对照的体重为处理的9 . 7倍与6 . 4倍,外源基因严重抑制幼虫的生长,说明外源基因在转基因白桦中能够正常表达,转基因植株表现一定的抗虫性。 |