An aquifer is a water-bearing rock stratum such as sandstone and chalk.
地下蓄水层是一些有水的
层, 如沙和白垩。
，；礁；暗礁
，子体；
，体；层；生油层力学；土力学层突裂边坡；坡；坡；流坡；火成；火山碎屑类型；型态盐；贮油；储油运动；作业An aquifer is a water-bearing rock stratum such as sandstone and chalk.
地下蓄水层是一些有水的层, 如沙和白垩。
Basic, acidic extrusive and volcanoclastic rocks are known as the main rock types.
炭纪末期本区的浆活动开始,早二叠世晚期和晚二叠世早期是两个主活动期。
The mason was chipping away at the rock with a hammer.
匠用锤子一点一点地把那
碎。
The spade clanged when it hit the rock.
铁锹铲在上发出当的一声。
Typically the rock is massive, but commonly it is flaggy or schistose.
这类典型地呈状，但常呈薄板状或片理化。
Be careful when you walk in this field; there are lots of rocks cropping out.
你在这地行走时要小心, 地面上有许多露出来的。
He was chipping away at the rock with a hammer.
他在用铁锤把那一小一小地敲下来。
The host rock conformably overlies a band of siliceous chertybrecia.
含矿主整合地上覆于硅质燧角砾带之上。
These are useful in hard rock mining where high brisance, high shattering effects, are desired.
这种炸药，对需要高威力、高破碎效应的坚硬矿，是有用的。
The spring oozes out of a rock.
泉水从中渗出。
The castle is founded on solid rock.
城堡建筑在坚固的上。
That rock musician has a cult following.
那个摇滚音乐家拥有大批狂热的崇拜者。
He looked on in horrified fascination as the ship drew nearer to the rocks.
他万分惊恐地看着船越来越靠近礁。
The hurricane flung their motor boat upon the rocks.
飓风把他们的摩托艇抛到上。
The boat was dashed against the rocks.
那船猛地撞到礁上。
The earthquake unsettled the rocks up the mountain.
那次地震震松了山上的。
Geologists study the structure of the rocks.
地质学家研究结构。
The goat leaped surely from rock to rock.
山羊稳稳当当地从一跳到另一上。
Phosphate rock is mixted with sulfuric acid and with revycled first-wash acid in a premixer.
磷矿在一个预混合槽中与硫酸以及循环回的第一洗涤酸进行混合。
Navigation is difficult on this river because of hidden rocks.
由于多暗礁, 在这条河上航行很困难。
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