The paper firstly presents the structure of IGCT test bench and its two cabinets for high-voltage producing and test circuit.

文章首先讲述了IGCT测试台的结构组成，分别设计了用于高压产生和高压测试的两个机柜。

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This paper introduces the characteristics, typical structure, application and simple test method of optoelectronic coupler.

本文介绍了光电耦合器的特点、典型结构及应用，以及简易测试方法。

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This paper introduces the structure and operation principle of the synchronous rotary hydraulic amplifier as well as the main data of performance measured during the test on platform.

本文介绍同步回转式液压放大器的结构和工作原理，以及它在台架试验中所测得的主要性能数据。

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The paper makes no attempt to test and reject the view that new technologies have changed the structure of the American economy in the late 1990s.

ECONOMIST: Oil and the new economy