混凝土结构被侵袭最常见的原因是其内的钢筋被腐蚀。
The most common case of construction deterioration is the corrosion of steel reinforcement.
灯丝隐藏在下面，在坩埚的视线外这样可以预防离子腐蚀，最大程度的保护其不受游离的碎料和冷凝物的侵袭。
The filament is hidden below and out of the line-of-sight of the crucible. This prevents ion erosion and provides maximum protection from shorting caused by stray particles or condensate.
应用推荐