Sediments are subsequently transported or dropped by such geological agents as water, wind and ice. In this way, sediments can be deposited in layers, one on top of the other. These layers or beds which are known as strata are the most distinctive features of sedimentary rocks.

之后沉积物被水、风、冰这些地质营力搬运或沉积,以这种方式,沉积物便可一层层地沉积起来形成层状岩石,这些层叫做地层,是沉积岩最为显著的特征。

属类：工程技术-地质-地质与勘探

D.C. electric method mainly deals with the distribution characteristics and regularities of D. C. electric field with respect to the geological features. A.C. electric method mainly studies the characteristics and regularities of the establishment, distribution, propagation of the A.C. electric field related to geological features.

直流电法是研究与地质体有关的直流电场的分布特点和规律,而交流电法则是研究与地质体有关的交流电磁场的建立、分布、传播特点和规律的。

属类：工程技术-地质-地质与勘探

Geologists will be hammering at outcrops, making geological maps, exploring the sea floor, and scrutinizing moon rocks as long as mountain-making, continental drift, sea floor spreading, earthquakes, and other planetary features remain incompletely explained.

只要像造山过程,大陆飘移,大洋扩展,地震以及其它一些星球现象还不能全面得到解释,地质学家便会在露头上用铁锤敲打,填制地质图,勘查海底以及详尽地研究从月球带回的岩石。

属类：工程技术-地质-地质与勘探

For other purposes, such as the location of dikes or geological faults the spacing can be anywhere between these extremes.

至于对岩脉和地质断裂这样一些地质现象的重力测量,其网格大小在上述范围之间。

属类：工程技术-地质-地质与勘探

geological institutes of Academia Sinica

中国科学院地质科学研究机构

属类：综合句库--

Geological instruction of barite witherite deposit exploration

重晶石、毒重石矿地质勘探规范

属类：行业标准名称-国家标准名-GB/T13692-1992

The major difference is that geological structures have limited permeability.

主要的问题是地质结构的渗透性有限。

属类：工程技术-食品工程-

The main advantages are due principally to the lack of interference in geological samples

主要优点在于地质样品不会有干扰因素。

属类：综合句库--

physical geological and engineering geological process

自然地质作用和工程地质作用

属类：综合句库--

Of the lowest or earliest series of geological strata

最下面的或最早形成的岩层的

属类：综合句库-典型例句-