该地质管经检验和使用，质量符合要求。
The tubes can meet the quality requirements by inspection and application.
但是在月球上，这些地质特征却往往是伴随着熔岩管(很久以前就已经出现在月球上了)崩塌而出现的。
But on the moon such geologic features usually occur following collapses of lava tubes, which formed long ago in the moon's history.
地质学家认同较深那一层含砷的风险低，不过，在开凿几百万个深管式井泵之前，这件事必须绝对确认。
Geologists agree that the risk of arsenic in deep aquifers is low, but before a few million such tube Wells are dug, they need to be absolutely sure.
由于顶管两侧地质条件差，工作井和接收井平面尺寸大，选择合适的施工技术显得尤为重要。
It is more important to choose suitable construction technology owing to poor geological conditions and large dimensions in terms of operation shafts and receiving shafts.
对排水(管)渠等非金属材质管线，应采用地质雷达探测的方法。
Nonmetal pipelines, including drainpipe and offtake, should be detected by geological radar.
高管们能合理地质问他们应该承担多少债务。
Executives can reasonably question how much debt they should take on.
同时对浅埋、富水和地质顺层地段分别采用管棚注浆和锚固桩加固的方法进行了处理。
Meanwhile, the pipe-roof grouting and pile anchoring method have been adopted also to strengthen the bedding strata of the large span tunnel.
通过实测结果和理论计算结果的对比分析，总结了适合郑州市郑东新区以粉质粘土、粉土为主，地下水位较浅的典型地质背景下的管桩复合地基沉降变形的一般规律。
Some general features of pipe pile composite foundation settlement derived from the typical geology background of silty clay, silty soil and shallow water level in Zhengzhou are summarized.
长输油气管道在敷设或大修时常因地质状况或天气情况的影响造成开挖管沟出现回淤、积水、坍塌等现象。
Silting, water accretion and collapse for the excavated ditch of pipeline are serious problems during the pipe laying or renovation of pipeline due to geological situation or weather.
为解决探地雷达用于隧道地质超前预报时探测距离小的问题，在分析了雪崩三极管工作原理的基础上，设计了基于两级雪崩三极管串行级联的窄脉冲产生电路。
The status in quo of Impulse Ground Penetrating Radar and the general principle of Avalanche Transistor are discussed then a new method for Avalanche simulation is given in this thesis.
为解决探地雷达用于隧道地质超前预报时探测距离小的问题，在分析了雪崩三极管工作原理的基础上，设计了基于两级雪崩三极管串行级联的窄脉冲产生电路。
The status in quo of Impulse Ground Penetrating Radar and the general principle of Avalanche Transistor are discussed then a new method for Avalanche simulation is given in this thesis.
应用推荐