求翻译：研究、开发、生产：电子产品；销售：消防设备、电气机械及器材；货物进出口、技术进出口（法律、行政法规禁止的项目除外；法律、行政法规限制的项目须取得许可证后方可经营）。*是什么意思？

Laws, administrative regulations to limit the project to obtain a permit before the operation except for the research, development, production: electronic products; sales: fire-fighting equipment, electrical machinery and equipment; import and export of goods and technology import and export (legal,

Research, development, production, electronic products, sales, fire fighting equipment, electrical machinery and equipment import and export of goods, technology, import and export (legal, and administrative regulations of the prohibition laws, except for the project; the project administrative regu

Research, development, production: Electronic products; Sale: Fire fighting equipment, electrical machinery and equipment; Cargo import and export, technical import and export (legal, administrative rules and regulations prohibition project exception; After legal, the administrative rules and regula

Research, development, production: Electronics Sales: fire-fighting equipment, electrical machinery and equipment; import and export of goods, technology import (laws, administrative rules and regulations prohibit, except items; projects of laws, administrative regulations, restrictions are required

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