Function and working principle of a gate watching dog of a guide circuit and a kind of a guide gate watching dog are presented for an intelligent vacuum circuit breaker in coal mine.
介绍了用于煤矿井下智能型真空磁力起动器中的先导电路看门狗的功能及工作原理和一种先导看门狗电路。
The technology experience of passing stone gate actual mining in combined mining thick coal seam and economic benefit in Xinan coal mine are introduced.
介绍了新安煤矿厚煤层综采跨石门回采的技术经验及取得的经济效果。
The water proof gate is the main safety facility against underground water to the coal mine threatened by water disaster.
对于受水害威胁的矿井，防水闸墙是井下防水的主要安全设施。
Model NGF powder feeder with internal gate and leakproofness is a major pulverized coal feeding equipment in combustion system of power plant to feed coal into boiler continuously and evenly.
ngf型内启闭无泄漏给粉机是火力发电厂锅炉燃烧系统主要的给粉设备，能把煤粉连续、匀地供给锅炉燃烧系统。
Just before sleep, I added a few carbons in the coal furnace and guarded a gate Windows to all close, thought that going to bed like this is more comfortable.
临睡前，我在煤炉里加了几根炭，把门窗都关了，以为这样睡觉更舒服。
Just before sleep, I added a few carbons in the coal furnace and guarded a gate Windows to all close, thought that going to bed like this is more comfortable.
临睡前，我在煤炉里加了几根炭，把门窗都关了，以为这样睡觉更舒服。
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