tungsten filaments钨丝A new method for seam tracking using image centroid in gas tungsten arc welding is presented.研究一种基于图像质心识别的电弧焊焊缝跟踪新方法.Tungsten has the highest dian of all metals: 3400 centigrade.钨在所有金属中具有最高的熔点,达到了3400...
Tungsten is classified among the metals.钨归入金属类.A glass or quartz tube has tungsten electrodes sealed in each end.两根钨丝电极是封在玻璃管或石英管的两端.The tungsten shines and gives a good light.钨丝发亮而射出耀眼的光芒....