反极性即反极性计费原理，是公用电话的一个计费信号。
反极性连接 reversed polarity
相反极性 [电子] opposite polarity ; OPO Opposite Polarity
直流反极性 DCRP
反极性保护 Reverse Power Protection ; Reverse Voltage Protection ; Reverse polarity protection
反极性脉冲 [电子] inverted pulse
反极性物质 antipolar mass
反极性测试 Reversed Polarity Test
反极性指标 Reverse polarity indicator
反极性衔铁 reverse polarity armature ; negative armature
The two characters of gun are decided by the condition of negative polarity weak plasma arc's burning.
该枪体的这两个特征是由反极性弱等离子弧的两个相应的稳定燃烧条件所决定的。
参考来源 - 反极性弱等离子弧堆焊设备及电弧特性研究·2,447,543篇论文数据，部分数据来源于NoteExpress
反极性期间由于铝合金作为阴极，阴极压降大电弧产热量也增大。
When Al alloy is used to be negative electrode, negative voltage produced more heat.
用球面压缩喷嘴取代常规的锥形压缩喷嘴，这些是设计反极性弱等离子弧粉末堆焊枪的关键所在。
Substituting double electrode for normal tungsten and substituting spherical constricting nozzle for normal cone one are the key to design the torch.
此电路不但可产生模拟反极性信号，而且可抑制语音干扰和线路噪声，有效地解决了实时计费与管理问题。
This circuit can not only produce analogous polarity reversing signal, but also suppress disturbance and circuit noice, thus solving the problem of real time charging and administrating effectively.
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