So to build a complete and accurate underground space information system is essential to the activities of planning design constructing etc.

因此，建立完备准确地建设 地下空间信息对于规划、设计、施工等人类工程 活动是至关重要的。

Their formation and distribution come from properties and structures of rock and soil geological structure topography and geomorphology vegetation rate of overlying dynamic condition of underground water atmospheric rainfall and human activities .

它的形成和分布与岩土性质和结构、地质构造、地形地貌，植被覆盖率、 地下水动力条件、大气降雨及人类 工程 活动有密切的关系。

Detection of underground pipelines is of great significance in normal activities .

地下管道的检测，在日常的生产 活动中，意义是非常重大的。

All Party organizations used to be in the open but since September underground organizations have been built up to prepare the Party for carrying on its activities when the reactionaries come .

过去党的组织全部公开，九月以后，建设 秘密的组织，准备在反动派来了也能 活动。

Capital Fleeing via underground private banks accompanying with violating-laws activities such as smuggle traffic in drugs money-laundering is a hotbed for corruption and malignant tumor for market economy .

通过 地下钱庄所进行的资本外逃通常伴随着走私、贩毒、洗黑钱等违法犯罪 活动，是腐败的温床、市场经济的毒瘤。

Based on the ground behaviour of the gently inclined thin manganese deposit and the intact rock stress a description is made on features and methods of mining the deposits and the law and current status of the related underground pressure activities .

以缓倾薄层锰矿床的地层特征、原岩应力等为基础，简述了锰矿床开采技术特征，采矿方法及相应 地压 活动规律与现状；

Underground economy refers to the economic activities which income is not declared to the government and which is out of control of government and taxation management and which output value is not included in GDP .

所谓 地下经济是指由于各种原因而没有向当地政府申报收入，从而导致政府无法实施对 地下经济施行控制和税收管理，其产值并未纳入国民经济生产总值的那部分经济 活动。

On Discriminating the Efficiency of Underground Economic Activities

浅论 地下经济 活动的效率甄别

The underground space including mass geologic information data associated with projects provides the environment for human project activities .

地下空间为人类工程 活动提供了主体环境，包含了大量工程相关信息，如何表现、挖掘这些信息隐含的地质信息，构建三维 地下 空间信息系统，是许多学者一直在关注的问题。

The amplitude ratio of spectrum between temporal stations and Beijing station varies with time-space changes which may be related to the underground electromagnetic structures earthquakes and tectonic activities in this area .

各临时台与北京台的频谱幅比具有一定的时空变化，可能与该地区 地下电磁结构、地震及构造 活动有关。

Underground pipe are important to support social activities . Once they suffer an strong earthquake it may bring serious influences on urban development and national political stability .

地下管道是支持社会 活动的重要基础，一旦遭遇地震，将对城市用水、社会稳定产生重大影响。

Resulted from worse geological condition and active ground pressure the underground workings of Jinchuan Mine always suffer from unstability especially when they are under dynamic condition of mining activities .

金川矿山 地下 工程 围岩的工程地质条件差，地压活动强烈，尤其是处于 采矿动态环境中巷道的失稳更为严重。

The spy never told his family about his underground activities .

这位间谍从未把他的 秘密 活动告诉家里人。

The underground economy is usually termed as informal economic activities and it is not purely negative as economists assumed from an aspect of institutional economics .

“ 地下经济”通常被称为非正式经济 活动，如果从制度经济学的角度来解释 地下经济，那么，它并不是一种完全消极的经济活动。

A study on the effect of underground hot water on fracturing and earthquake activities

地下热水对断裂 活动与地震 活动的影响研究

They were suspected of underground activities .

他们被怀疑进行 地下 活动。

The underground building expanded the people 's activities saving space it is helpful for the land of economic development and the prosperity of mankind .

地下建筑物扩展了人们的 活动空间，节省了地面的土地，它有利于经济的发展和人类的繁荣。

To make our country civil financial really break at present underground awkward position must be prompted civil financial activities criterion development change to the civil financial pressure situation to construct a set of perfect civil financial legal system .

要使我国民间金融真正摆脱目前 地下的尴尬地位就必须促使民间金融 活动规范发展，改变对民间金融打压现状，重新构建一套完善的民间金融法律制度。

Roof caving is one of the most serious engineering disasters in underground mining activities of metal mines . It not only delays the progress of production but also threats against underground workers .

顶板垮落是金属矿山 地下 开采中严重的工程灾害之一，它不仅影响采矿进度，同时也对井下作业人员生命安全构成威胁。

The positive dradge strategy should be taken to underground productive financing activities and related financing body but to ban those illegal underground financial activities such as money-laundry the firm hand should be taken and then to maintain financial order .

对于融资性地下金融活动，应该采取积极疏导策略，而对于非融资性 地下金融 活动，特别是洗钱 活动，则应该坚决予以取缔，以维护良好的金融秩序。

The underground activities of the banned opposition parties .

被查禁的反对党的 地下 活动。

The underground activities of long sales in China have existed for many years but there is lack of the mechanism of short sales .

中国长期以来存在 地下融资交易 活动，但一直缺乏卖空机制。