1) stratified rocks
成层岩[复]
2) stratified rock
层岩,成层岩
3) compound rock strata
复合岩层
1.
Key strata is a rock seam which plays an important controlling roles in the movement of mining overlayer strata while the key strata is sometimes made up of two or more compound rock strata.
在采场覆岩运动中起主要控制作用的岩层为关键层,而有时关键层是由2层或2层以上岩层形成的复合岩层所组成,我们称其为复合关键层。
4) overburden rock
复盖岩层
6) igneous rocks
[复]火成岩
补充资料：配成复混肥料(见复混肥料)
配成复混肥料(见复混肥料)
肥料。配成复混肥料见复混
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条