The Borehole Television Used for Observation of Coal Mine Roof

Oilfield is mined under the condition of function of edge-bottom water, when there is often crowded cement content, and through sealing borehole realize to seal high aquifer.

油田在边底水作用的条件下开采，作业时往往具有挤水泥措施内容，通过封堵炮眼实现封堵高含水层段。

To use drilling fluid resistivity curve can also check out borehole seal quality, water sealing up effect and borehole water table, figure out some hydrogeological problems.

利用井液电阻率曲线还可检查钻孔封孔质量、止水效果及确定钻孔水位，以解决一些钻孔及水文地质问题。

By means of digital video technique and multimedia technique, the digital panoramic borehole camera system develops quickly.

利用数字视频技术和多媒体计算机应用技术而发展起来的数字式全景钻孔摄像技术利用数字技术对钻孔内的多种信息进行采集、变化、储存、显示和应用，具有很高的精度和清晰度。

Application of digital borehole camera to quality test boreholes for grout curtain in Xiaolangdi Water Control Project

数字钻孔摄像在小浪底帷幕灌浆检测孔中的应用

Study and Application of Digital Panoramic Borehole Camera Technique for the Measurement of Loose Rock Zone around Roadway

数字化全景钻孔摄像测量围岩松动圈的研究与应用

The Application of Panoramic Borehole Camera to Extremely Thick Seam Working Face in Carboniferous System

钻孔摄像技术在石炭系特厚煤层工作面的应用

Test of digital borehole camera and borehole computed tomography imaging

数字钻孔摄像与钻孔CT层析成像测试试验

Application of Digital Panoramic Borehole Camera System Based on Railway Engineering Geology Investigation

基于铁路工程勘察的数字全景钻孔摄像系统应用研究

Digital borehole camera is the new method in optical borehole imaging.

数字钻孔摄像是光学成像测井技术的新手段。

Borehole radar survey proves to be an effective method to detect the fracture extension and rock integration of granite, and is of important significance in site characterization for high-level radioactive waste repository.

北山1号孔钻孔雷达测试的实践表明：钻孔雷达测量是了解岩体内部裂隙延伸和岩体完整性的有效手段，对高放废物处置库场址评价有重要意义。

Over-burden low resistivity layers and sandwich low resistivity layers have large influence on borehole electric survey results.

低阻覆盖层和中间低阻层对井中电测影响很大，厚层覆盖区对地-井方式观测不利；

Numerical calculation of borehole electrical survey in layered media and its applications

层状介质井中电测数值计算及其应用研究

In addition, it is proven that the block selection is such an efficient method that it can provide more detailed data for the next borehole survey.

实践证明，岩块筛选可为岩块的钻孔研究提供更详细的基础地质资料，在处置库的选址过程中起到事半功倍的作用。

Digital Simulation of Gyrocompass Borehole Survey System

陀螺罗经测井系统数字仿真

The results are showed as follows: 1. Under the boreal climate conditions, the days of acceptable turf quality increased significantly when using fertilizer.

研究结果表明：1.在我国北方气候条件下，施肥明显增加草坪可接收质量天数。

Investigation on Anti-wear Effects of Borderline Lubrication under Different Condition of Tribological Pairs

基于不同摩擦副条件下的边界润滑抗磨效果研究

The hydrodynamic model of surface water flow movement possess a better simulation precision but because its calculation is relatively complex and the disposal of borderline condition is comparatively difficulty, study on this model is a little deficient and further research is needed.

地面水流运动的全水流动力学模型具有更高的模拟精度，但是由于其计算比较复杂，边界条件处理起来比较困难，在这方面的研究与应用还比较欠缺，有待于以后对其作进一步研究。

The main conclusions are: groundwater flux of NO 3 N was 30.06% of total terrestrial flux; groundwater flux of nutrients is an important borderline condition for the marine environmental evaluation.

结果表明，1999年5月下旬地下水向海洋输送的NO3N占整个陆源输入量的30.06%，说明地下水向海洋的营养盐输送量是海洋环境评估的重要边界条件。

Among the patients with borderline tumor, the contrast risk of the mortality and relapse of the heteroploidy was higher than that of the diploidy ( P < 0.01).

交界性肿瘤中.异倍体肿瘤复发和病死的相对危险性明显高于2倍体肿瘤（P＜0.01）。

Pathological types of ovarian borderline tumor recurrence is borderline tumor, before and after recurrence the pathological type of that was basically same, and rarely underwent malignant transformation. 2.

结论：1.卵巢交界性肿瘤术后复发的病理组织学类型仍为交界性肿瘤，很少发生恶变。