青云
[词典]high official position; Qingyun
[例句]
On the basis of analyzing strength and layer-crack damage characteristics of thin-layered Qinyun-stone ore, the separate blasting and cutting blasting tests are carried out on it.
对于薄层状青云石矿，密集的、强度较低的层理面严重影响切割爆破效果，不能沿用块状石材的切割爆破方法，因此需要进一步试验研究。
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