- 零: zero zero sign; nought
- 交叉点: cross point; cross-over poin ...
- 零交叉: zero crossing; zero-cross; zerocrossing
- 零交叉,零交叉法: zero crossing
- 交叉点: cross point; cross-over point; intersection point; point of crossing; point of junction; crunode; intercept; crossover
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