pyroclasitc rocks的用法和樣例：
例句
- Dolomite and volcaniclastic rocks of Fengcheng formation are also good reservoirs.
風(fēng)城組的白云巖及火山碎屑巖的分布部位也為良好的儲層。 - On the basis of the past schemes, new classifications of pyroclasts and the petrographic as well as the petrogenetic classification of pyroclastic rocks are proposed in this paper.
中國學(xué)者提出的火山碎屑巖分類(lèi)時(shí)間較早，有自己特色，在一定的范圍得到了應用。
