n.指示者，指定者...

designator的音标：designator的英式发音音标为：[ˌdezɪg'neɪtə]designator的美式发音音标为：[ˌdezɪg'neɪtə]...

The laser target designator has two functions which are guidance and range finding.激光目标指示器的两个主要功能是为寻的武器提供目标指示和测距....