单词	hair-line crack
释义	hair-line crack 瞄准线
随便看	shield tunneling machine shield tunneling method shield tunneling technology Shield tunnel in rock shield tunnelling Shield tunnelling machine Sh IE ld tunnelling method shield tunnelling technology shield tunnel lining shield tunnel method shield tunnel pipe segment shield tunnels shield tunnel segment shield tunnel under river shield turmel shield twisted pair shield twisted pair, STP shield type selection shield-type support shield U-turn launching Shield,Vaginal shieldvocano shield volcano shield volcanoaspite shield volcano of the hawaiian type