51 miners have survived the coal mine explosion that left 8 dead in Yichuan County of Henan Wednesday.
截至目前，河南伊川"3·31"矿难已有8人遇难，另有51名矿工获救。
Our main products: 110KV , 63000KVA and below Power transformer, mine explosion-proof mobile substation, dry-type transformer and so on.
主要生产电压为110KV及以下，容量为63000KVA及以下电力变压器、矿用隔爆型移动变电站、干式变压器等。
The paper thoroughly introduces the ac-ac frequency converter in driving system of asynchronous motor for underground coal mine explosion-proof winder.
本文对一种用于煤矿井下防爆绞车驱动的交交变频器——鼠笼式异步电机传动系统做了全面的介绍。
Based on the above, we intend to develop a mine explosion-proof electrical frequency of integration in order to meet the needs of various types of coal production.
根据上述情况，我们拟研制一种矿用隔爆变频一体化电机，以满足各类煤矿生产的需求。
The above products have passed national coal mine explosion-proof security product quality supervision and inspection center, explosion-proof test, acquired qualified certificates.
以上产品均已通过国家煤矿防爆安全产品质量监督检验中心测试合格，获得防爆合格证书。
The above products have passed national coal mine explosion-proof security product quality supervision and inspection center, explosion-proof test, acquired qualified certificates.
以上产品均已通过国家煤矿防爆安全产品质量监督检验中心测试合格，获得防爆合格证书。
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