The way to make more accurate measurements in the very low resistance ranges is analyzed and the measurements using split Kelvin method in special case are explained. 分析了采用全开尔文更精确测量极小电阻的方法,介绍了在特殊情况下使用分离开尔文连接测试电阻的方法和用途。
The result of the experiment verifies the conclusion of the theoretical simulation, and shows that the tightly packed structure has a satisfactory acoustic attenuation performance in a wide frequency range and a very low resistance loss. 实验结果验证了仿真计算所得到的结论,表明所设计的水消声器不仅结构紧凑,而且在很宽的频率范围内都有令人满意的消声效果;
It showed a very low flow resistance and similar separation performance with that of the long column. 制备了厚度仅有10mm的盘状分子印迹整体柱,它具有极低的流通阻力和与长柱子相似的分离能力。
The cracking of alloy with very low stress-corrosion resistance, welded and stored in open air for a long time, is caused by the welded stress and such a fracture is a typical intergranular fracture. 抗应力腐蚀性能低的合金焊接后,在大气中长期存放沿熔合线发生的开裂,是由焊接应力引起的,断口是典型的脆性沿晶断裂。
The results of durability test show that the water permeability of HPLWAC is very low, and the frost resistance of HPLWAC is better than that of normal density concrete. 耐久性实验证明,高性能轻集料混凝土水的渗透性很低,并且该混凝土的抗冻性优于普通重度的混凝土。