movable protective plate 移动保护板
hanging protective plate 吊挂保护板
protective glass plate 防护玻璃片 ; 保护玻璃片
Protective plate loading 保护板装填
Wire slot protective plate 线槽保护板
bidirectional side protective plate 双向同时活动侧护板
Already starting to the crusher, should first idling for several minutes, can check base, idling protective plate chain, such as no abnormalities, can start feeding.
对已起动的破碎机，应先空转几分钟，空转时可以检查基座、防护板链等，如无异常，可开始给料。
Through experiments, the improvement can reduce the content of minicrystal to 31.8 percent, compared with an original protective plate without a through hole for the cooled air to circulate.
通过试验，相对于原先没有用于冷却气体流通用的通孔的护板，该改进可以把微晶含量减少到31.8%。
This paper mainly researches on the technique of draining long distance pressure relief gas in bed plate tunnel under the circumstance of mining protective coal seam.
本论文主要是针对远程下保护层开采条件下，对底抽巷上向穿层钻孔抽放远程卸压瓦斯技术进行了深入的研究。
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