高新产业企业家为电驱跑车先拔头筹。
对比分析电驱动顶驱和液压驱动顶驱。
Comparative Analysis of Electric drive top drive drilling system and hydraulic driven top drive drilling system.
顶部驱动钻井装置，分为电驱动顶驱和液压驱动顶驱。
The top drive drilling system, divided into electrical top drive and hydraulic top drive.
我国在电驱动顶驱方面的设计和研究上基本形成系列化。
China have developed the design and basic research in a series in the electric top drive.
目前国外在电驱动顶驱和液压驱动顶驱方面都形成了系列产品。
Currentily the electric top drive and hydraulic top drive have formed a series of products in abroad.
1880年的今天，托马斯·爱迪生提出电驱白炽灯的专利申请。
1880 - Thomas Edison files a patent for his electric incandescent lamp.
研究了季铵盐型表面活性剂的驱油机理：表面张力和界面张力、表面润湿性、表面电性。
Oil displacement mechanism of quaternary cationics has been studied in several ways: surface and interface tension, wettability, surface electrical behavior.
实验分析了聚合物溶液自身电阻率特征及聚驱前后岩石电性特征的变化。
The experiment analyzes electric character of the polymer solution and variety of the rock electric character before and after polymer flooding.
为增强直驱型变速恒频风电系统的低电压穿越能力，采取了变流器直流侧增加卸荷负载以在故障时消耗掉直流侧多余的能量，使风电机组的正常运行基本不受电压跌落影响的应对措施。
By adding damp load at DC-side of the converter, redundant energy at DC-side during grid faults will be consumed, therefore the operating of wind turbine will not be influenced by grid voltage sags.
结果表明，在频响不高的场合直驱式电液伺服装置完全可替代传统的电液伺服装置。
It is demonstrated that direct drive electro-hydraulic servo system can replace the traditional electro-hydraulic servo system in the low frequency response.
介绍了直驱式电液伺服系统的实现方案，并建立了系统的数学模型。
The actualization method of the direct drive electro-hydraulic servo system was introduced, and the mathematic model of the system was built.
搭建了直驱式电液伺服系统的试验台，对系统进行了试验研究，从而验证了数学模型的正确性。
To build up a test-bed for DDVC electro-hydraulic servo system, taking the experiment in order to verify the correctness of the mathematical model.
提出了一种采用直驱式电液执行器实现双缸同步驱动的液压系统。
A new type of double cylinders synchronous system driven by a direct drive electro-hydraulic actuator is put forward in this paper.
结果表明，将直驱式电液伺服系统应用于土木工程结构振动主动控制上是可行的。
The results show that the DDVC electro-hydraulic servo system applied to civil engineering structure vibration active control is feasible.
结果表明，将直驱式电液伺服系统应用于土木工程结构振动主动控制上是可行的。
The results show that the DDVC electro-hydraulic servo system applied to civil engineering structure vibration active control is feasible.
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