青雲
[詞典]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.
對於薄層狀青雲石礦，密集的、強度較低的層理面嚴重影響切割爆破效果，不能沿用塊狀石材的切割爆破方法，因此需要進一步試驗研究。
