采用非线性有限元法，对深井巷道围岩应力及变形状态进行了数值计算。
With the non-line finite element method, the numberical value calculation on the stress and deformation of surrounding rock of deep mine roadways has been presented.
文中通过一个成功的工程实例，初步探讨和总结了用爆破施工法拔出深井井管的方法、原理以及注意事项。
Through a successful Engineering example, this paper discussed and summarized the method, principle and attentive items for drawing out deep-well tubes by the construction technique of blasting.
智能水位计的研制成功，主要解决了供水企业深井水位（或液位）的测量问题，它取代了以往用万用表测量水位的“欧姆”法。
Problems in measurement of water level(or liquid level)in deep wells are solved through developing the intelligence water level gauge instead of Ohmic method.
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