It's the pronoun of safety and environmental protection in mining pumps field.
是矿业用泵中安全环保的代名词。
Article 32 in mining mineral resources, a mining enterprise or individual must observe the legal provisions on environmental protection to prevent pollution of the environment.
第三十二条开采矿产资源，必须遵守有关环境保护的法律规定，防止污染环境。
Pump unit is widely used in industrial and mining enterprises, urban construction, fire safety, environmental protection, farmland irrigation, landscape irrigation, and other aspects.
水泵机组广泛用于工矿企业、城市建设、消防安全、环境保护、农田排灌、园林喷灌等多方面。
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