The test system uses an AC drive system which provides direct coupled input to the test item.
该系统使用一个交流驱动系统用于向测试对象提供直接耦合输入。
High Powered, Direct Coupled, Hydrostatic Cone Drive.
高功率，直接连接，液压驱动圆锥破。
Secondly, we presented two analysis methods of Coupled-Field, and Sequential Coupled-Field method and Direct Coupled-Field method were introduced in detail.
其次，本文介绍了耦合场的两种分析方法，对顺序耦合法和直接耦合法进行了详细的介绍。
The core circuit is two stages of direct-coupled difference amplifier.
核心电路为两级直接耦合差分放大器。
Active inductors are employed as loads to expand the bandwidth and to get stable DC operation points, and the direct-coupled technique is used to increase voltage gain and reduce power dissipation.
电路采用有源电感负载来拓展带宽、稳定直流工作点，通过直接耦合技术来提高增益、降低功耗。
Then, novel, low-cost and high performance direct-coupled E-plane filters and iris-coupled filters are analysed.
接着设计了新颖的、低成本、高性能直耦E面滤波器和膜片耦合滤波器。
Active inductor loads and direct-coupled technology are employed to increase the gain, broaden the bandwidth, reduce the power dissipation, and keep a tolerable noise performance.
该放大器采用有源电感负载技术和放大器直接耦合技术以提高增益，拓展带宽，降低功耗并保持了良好的噪声性能。
At present, three kinds of seismographs are used at Chinese seismic stations. They are the direct-coupled seismometer, the galvanometric seismograph, and the electronic seismograph.
目前，我国基准地震台上使用三种类型地震仪：直接耦合地震仪、电流计记录地震仪和电子放大地震仪。
At present, three kinds of seismographs are used at Chinese seismic stations. They are the direct-coupled seismometer, the galvanometric seismograph, and the electronic seismograph.
目前，我国基准地震台上使用三种类型地震仪：直接耦合地震仪、电流计记录地震仪和电子放大地震仪。
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