Two Critical concepts involved in direct current ice-melting technique of high voltage over head line, the least ice-meltingcurrent and the Max allowed current was presented.
提出了架空输电线路直流融冰的两个重要参数：最小融冰电流和最大允许融冰电流的概念。
2
Current global warming from greenhouse gases generated by human activities could warm the arctic to levels above the melting point of ice, the study said.
该研究称，人类活动产生的温室气体所造成的当前全球变暖可能使北极暖化程度高于冰的融点。
3
Weld penetration and wire melting speed of AC PMIG welding not only have relationship with welding current but also with electrode negative ratio.