[詞典] directionality; directing property; directive property; stereotaxis;
[例句]碟形衛星天線的定向性非常強。
Dish aerials are highly directional
指向性
[詞典] directivity; directionality; [電磁] directive property;
[例句]介紹了指向性因數和指向性指數的定義、計算式。
The definition of directivity factor, directivity index& equation are introduced firstly.