Like the Era, the Era has been divided into smaller units of geological time called period.

Therefore, they are more difficult in geological investigation, design, construction and operation than land tunnels.

海底隧道深埋于海水以下, 因而在勘探 、 设计 、 施工和运行方面都比陆地隧道更困难.

The factors that influence the occurrence of disasters are natural, geological environment and human action factors.

影响地质灾害发生的因素有自然因素 、 地质环境因素及人为因素.

Geological conditions of the landslide are complex and the progressive mechanism is toppling or slip.

滑坡区地质环境条件复杂,滑坡成因机制为弯曲折断-滑移的地质力学模式.

Peter Ward is a seismologist with the US Geological Survey.

彼得·沃德是美国地质调查局的一名地震学家。

Geoparks and crater lakes to the ring of fire around the hills mainly of geological heritage.

地质公园以火山口及湖周围的环形火山丘地质遗迹为主.

The geological prospecting and mining history has been reviewed, in the coal basin of western Beijing.

文章回顾了京西煤田已往地质勘查及开采状况.

IT is used for stabilizing drill tools during the drilling of oil, gas and geological exploration.

在石油 、 然气及地质勘探钻井过程中稳定钻具所采用的一种稳定器.

The geochemical and geological characteristics are the same a those of a porphyry copper deposit.

矿床地球化学特征、矿体特征均显示出斑岩型铜矿床特点.

Geologically speaking, this area is extremely interesting.

从地质学上来说, 这个地方是极为有趣的.

Work closely with plant manager, maintenance manager and mine geologist.

与选厂经理, 维修经理和矿山地质师紧密合作.

The geologist showed the structural difference in rocks of different ages.

该地质学家说明了不同年代之岩石在构造上的差异.

The geologist theorized brilliantly about the age of the earth.

这地质学家出色地导出有关地球年龄.

Since starting at university majoring in geology, I have a full 25 years as a geologist.

我从在大学学地质到从事地质工作整整25年.

The geologist proves up a coal deposits.

地质学家探明了一个煤矿的藏量.

The geologist I contacted thinks this is an ideal place to drill.

我联系的地质学家认为这是理想的打井勘探的地方.

The geologist must be present.

地质人员必须在场.

Wang Hongzhen who is a famous and representative geologist has almost for 70 years.

王鸿祯先生是我国著名的,有代表性的地质学家.

A geologist would have been charmed with the scene laid open to our view.

任一个地理学者一定会被出现在我们眼前的景观所著迷.

Having read an article describing Wegener's idea, the geologist must have been burnt up.

读完描述魏格纳思想的一篇文章的原稿, 这位地理学家想必被激怒了.

To acquire this background , the petroleum exploration geologist must have mastered the basic principles.

石油地质勘探工作者要具备这一基本功,就必须掌握基本原理.