The latter two sources are limited to those few areas where surface water seeps down through underground faults or fractures to reach deep rocks heated by the recent activity of molten rock material.

后两种来源局限于少数区域，在这些区域，地表水通过地下断层或断裂往下渗透，从而接触到被近期的熔岩活动加热的深层岩石。

youdao

To the deep rock engineering, stress state of rock mass directly influences the stability of project.

对于深埋岩石工程，岩体的地应力状态直接关系到工程的稳定性。

youdao

We chug upstream through the jungle in a little fishing boat, past deep rock channels, dripping with vines and moss.

我们乘着一艘小渔船沿着丛林溯流而上，经过很深的岩石水渠，两边长满藤蔓植物和青苔。

youdao

Bones,hair,feathers, even the remains of plants have been found in deep, dry caves high in the rock walls.

VOA: special.2009.10.07

At the same time, hot liquid rock from deep in the Earth pushed to the surface.

VOA: special.2009.01.07

These lines follow underwater mountains, where hot liquid rock flows up from deep inside the planet.

VOA: special.2010.01.12

Fracking is a drilling process that frees gas from deep rock deposits by injecting wells with chemical-laced water at high pressure.

WSJ: Record: Libous ended stake in firm eyeing fracking

After driving from Iowa, the first 10 feet of the bus were covered an inch deep in rock salt.

CNN: Express Line dispatch: Time for reflection, laundry

Natural gas production has boomed in many states over the past few years as advances in drilling opened up vast reserves buried in deep shale rock.

WSJ: Fed survey: Pa. shale gas boom regions robust