The grounding protection mode of the AC 380 V air-conditioned passenger cars as well as the harm of different grounding protection ways existing simultaneously is described.
介绍了AC 380V空调客车的接地保护方式以及不同接地保护形式并存的危害，并提出了改进措施。
The corrosion protection ways of fire engine were studied in relation to the selection of corrosion resistant materials, corrosion protection design of fire engine and its painting.
从耐蚀材料的选择、消防车的腐蚀防护设计及其涂装等方面探讨了消防车的防腐方式。
Based on difference use conditions, rusting condition of steel structure in metallurgical enterprise are analysed and protection ways are put forward.
根据不同的使用条件，分析了冶金企业中钢结构的锈蚀情况，提出了防护方法。
Based on difference use conditions, rusting condition of steel structure in metallurgical enterprise are analysed and protection ways are put forward.
根据不同的使用条件，分析了冶金企业中钢结构的锈蚀情况，提出了防护方法。
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