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....
With appallingly bad grace I packed up and we drove north.我很不情愿地收拾好行囊，然后我们驱车向北开去。Another damning statistic for South Africa is its appallingly high murder rate.南非还有一项糟糕的统计,表明它还有着令人毛骨悚然的高谋杀率.The detection rate for racial ...
It came floating back to him, momentarily, with the coffee and liqueurs.由于喝了咖啡和烈性甜酒, 他暂时回忆起往事来.The first organisms that reproduced sexually were free-floating plankton.最早开始有性繁殖的生物是四处漂浮的浮游生物。...barges floating quietly by ...
空气从肺部输出,首先通过声门.Air that is expelled from the lungs passes through the glottis.以直达式喉镜发现声门狭窄与广泛性溃疡坏死组识.Direct laryngoscopy revealed narrowing of the glottis with diffuse ulcerative necrotic tissue.目的提高跨声门癌的诊断水平.Objective T...
The club members held a secret ballot to choose the chairperson.俱乐部成员用无记名投票选举负责人.Members of the association shall elect one Chairperson.第十四条本会置理事长一人,由会员互选之.Her questions have caught the department chairperson flat - foot...