We have seen in the market most of the magnetizing cup with magnets, plus or minus pole points.
咱们在市场上所见到的磁化杯大多采用一般磁铁，正负极不分。
Linking method: Connect the electric needle instrument of plus or minus pole respectively on the needle handle, and exchange poles every time.
连接方法：将电针仪的正负极分别接在针柄上，每次将正负极交换连接。
Combination electrode in both the plus and minus pole can stably work, have smaller electric resistance, good conduct ability and strong the anti-decays ability.
组合电极在正负极都能比较稳定工作，自身电阻较小，导电能力好，抗腐蚀能力强。
A few hundred miles down the "Road of Bones" is Oimyakon, known as "The Pole of Cold". It was here that the lowest ever temperature in an inhabited place was recorded – minus 71.2C.
整个雅库茨克地区都要经受严酷的寒冬，沿着“白骨之路”下行几百英里就到了奥米雅空，是知名的“冷极”，就是在这里记录到了有人居住地区的最低温度——零下71.2度。
Temperatures at the North Pole crept up toward the freezing point when they should have been minus twenty Fahrenheit.
北极点的温度上升到冰点时，应该是零下二十华氏度。
Temperatures at the North Pole crept up toward the freezing point when they should have been minus twenty Fahrenheit.
北极点的温度上升到冰点时，应该是零下二十华氏度。
应用推荐