引起 发表于 2025-3-25 05:50:22
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Main Features of Soviet Secrecy,llenge began as a voluntary collaboration managed by a sponsor, the Energy Center of Wisconsin, that included 15 sponsors from equipment manufacturers and distributors’ associations, utilities, state research and development agencies, energy efficiency organizations, and the USDOE. The mission of th扔掉掐死你 发表于 2025-3-25 22:29:27
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https://doi.org/10.1007/978-1-349-02076-8k from a recognized certification organization. An energy efficiency verification mark indicates only that the energy performance of the product has been verified; it is not a safety certification mark. The verification mark must be put on the exterior of the product. To authorize an energy efficien联想记忆 发表于 2025-3-26 09:25:00
https://doi.org/10.1057/9780230307049ugal pumps, fans, etc.) a higher efficiency of the process is achieved, thus allowing for energy saving..Efficiency of electrical motors has been improved for normal sinusoidal supply, without taking into account the negative effects when feeding the motors by means of frequency converter..The frequAsperity 发表于 2025-3-26 15:18:59
The Russians in Egypt: Key to the Arab Worldrepresents a crucial aspect to obtain a consistent energy saving. In the USA, from 1997 the electric motor producers have to build high efficiency motors in according to the protocol promulgated by the Energy Policy Act (EPACT). This protocol defines the minimum value of the efficiency for general p制造 发表于 2025-3-26 20:49:04
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