花岗岩

huā gāng yán huà

花岗岩化

granitization

zhè xiē tǎ lóu shì gāng jié gòu huā gāng yán tiē miàn

这些塔楼是钢结构，花岗岩贴面。

These towers are made of steel cased in granite.

huā gāng yán nǎo dai

花岗岩脑袋

ossified thinking