Noviro
页岩
Simplified 页岩
Traditional 頁岩
Pinyin yè yán
Definition shale
这些页岩很硬
Zhèxiē yè yán hěn yìng
These shale rocks are very hard
You might also see
岩
yán
cliff; rock
岩石
yán shí
rock
岩浆
yán jiāng
(geology) magma
熔岩
róng yán
(geology) lava
岩层
yán céng
rock strata
砂岩
shā yán
sandstone
岩盐
yán yán
rock salt
月岩
yuè yán
moon rock