按一般標(biāo)準(zhǔn)衡量, 地核是由相當(dāng)致密的物質(zhì)組成的.Judge by ordinary standards, the core is made of rather dense stuff.可以看出,致密的礦脈可用電阻率法來(lái)發(fā)現(xiàn).We can see that the massive vein is revealed by resistivity.它的致密的形態(tài)是其失活的反映.Its compact appearance is a refle...