缺乏适当、预先规划的频谱协调和考虑的E3将对竞争性的用户产生负面影响。
Lack of proper, preplanned frequency coordination and consideration of E3 will have an adverse effect upon friendly competing users.
因为它们可以协调整个频谱，可提供一种安全且环保涂料替代颜料。
Because they can be tuned across the whole spectrum they might provide a safe and environmentally friendly replacement for pigments in paint.
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