convergence of wall rock 两帮收敛量
alteration of wall rock 作用称为围岩蚀变
break of wall rock 围岩破坏
wall rock of tunnel 隧道围岩
wall-rock of tunnel 巷道围岩
The climber inched up a vertical wall of rock.
那名登山者一点点爬上了一处垂直的岩石峭壁。
The mountain rise up in a steep wall of rock.
这座山高而陡,形成一道岩石屏障。
Down he went, until he touched the wall of rock again. But the salt was so painful in his eyes that he could not see.
他向下潜着,一直又触到了那块岩石槽。可是海水中的盐分使他的眼非常疼,以致什么也看不见。
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