A pipe-bending apparatus. Technical standard for elbows and returns in petrochemical tubular heater 弯管器一种用来扳弯管子的器械石油化工管式炉急弯弯管技术标准
The corrosion fatigue behavior of carbon steel in drilling fluids was investigated with a self-made rotary type bending corrosion fatigue testing apparatus under simulated drilling conditions. The hydrogen permeation into carbon steel in drilling fluids was studied by electrochemical method. 用旋转弯曲腐蚀疲劳试验研究碳钢在钻井液中的腐蚀疲劳行为,并用电化学滞后时间法研究钻井中碳钢的氢扩散行为。
Methods '9 fresh cadaveric femurs were used, the biomechanic properties of compression, bending and torsion were analysed using electric measuring apparatus after fixation of fracture. 方法:采用9具成人新鲜尸股骨标本,对其骨折固定后,在压缩、弯曲、扭转的生物力学性能进行电测实验应力分析。
All the animals were executed 6 weeks after operation, and the bone mineral density, 3-point bending test and plain X-ray examination were accomplished by dual-energy X-ray bone mineral density apparatus, WD-1 omnipotence electronic biomechanics device and measurement of maximum callus diameter on X-ray, respectively. 致伤后6周处死动物,采用双能X射线骨密度仪测定患肢骨折处骨密度值;用WD-1型电子万能测试机进行患肢三点抗弯实验,测定弯曲强度极限值;