求翻译：变压器绕组变形测试仪、变压器低电压短路阻抗测试仪、直流电阻测试仪、油化气测试仪等电力试验仪器的研发、生产（有许可要求除外）是什么意思？

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Transformer Windings deformation of the transformer tester, low-voltage circuit impedance tester, dc resistance tester, oil, gas and electricity meter testing equipment R&D, production (with the exception of licensing requirements)

The transformer winding distortion reflectoscope reflector, the transformer low voltage short-circuit impedance reflectoscope reflector, electric testing instrument and so on DC resistance reflectoscope reflector, oil carburetion reflectoscope reflector research and development, the production (have

Transformer winding deformation testing, low voltage transformer short circuit impedance Tester, DC resistance Tester, oil gas testers and other electrical test equipment development, production (except for the licensing requirements)

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