简要评述小直径管对接焊缝射线照相的特点、方法以及现行技术规定。
The status of the radiographic technology for the butt-welded joints in small diameter tubes are re-viewed briefly. The key points are discussed for the development of radiographic technology.
计算机小直径管三维设计，其效率是传统手工设计的数十倍，数据准确、可靠，在施工中收到较好的效果。
The 3-d CAD design of small-sized pipe has the efficiency 10 times over the traditional manual design with accurate and reliable data, which has obtained better results during construction.
介绍了回采巷道复合顶板条件下采用小直径管缝式锚杆加钢筋梯式组合网支护的原理、方法和取得的经济效果。
The paper introduced the principle and methods of supporting combined the slit wedge bolt in small diameter with steel reinforcement in roadway with compound roof, and obtained economic effects.
小直径超薄壁管纵缝焊接的主要问题是烧穿，解决这个问题的关键是严格控制焊接接头的装配质量及焊接工艺。
Burn through is the main problem of longitudinal seam welding of ultra-thin tube with small diameter. Assembly of the joint and welding technology are the key to solve the problem.
以光电技术应用为基础，设计了一套适用于小直径焊管生产的新型自动精确定尺系统。
A set of auto fixing-length system for the production of small diameter welding pipe is designed on basis of application of technology of photoelectric.
结合影响锚杆工作阻力的各个因素及现场提供的数据，提出了解决小直径缝管锚杆安装问题的方法。
Combining with each factor affecting resistance and data provided in fields, the methods to solve the installation problems of slotted bolts in less diameter are proposed.
带眼衬管一般用于小直径井筒或在不需对衬管注水泥(如层位封隔所要求)的储层内的侧钻。
Perforated liners typically are used in small-diameter wellbores or in sidetracks within the reservoir where there is no need for the liner to be cemented in place, as is required for zonal isolation.
熔体管采用含氧化硅较高的原料作灭弧介质，应用小直径的金属线做熔丝。
Melt the oxidation silicon tube containing high raw material for arcing medium, application of small diameter metal line do melt silk.
熔体管采用含氧化硅较高的原料作灭弧介质，应用小直径的金属线做熔丝。
Melt the oxidation silicon tube containing high raw material for arcing medium, application of small diameter metal line do melt silk.
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