English translation for "directional aids"

定向航标
定向器材
定向设备

Related Translations:

directional cosine:  方向余弦

directional differentiation:  方向微分法

directional wattmeter:  定向瓦特表

directional drainage:  极性排流

directional trim:  方向配平

directional source:  定向震源

directional bit:  定向钻头

directional stimuli:  定向刺激，定向促进定向促进

directional gyrocompass:  方位陀螺仪陀螺半罗盘

directional testing:  方向的抽查

Similar Words：

"directional accuracy" English translation, "directional action" English translation, "directional adjust table" English translation, "directional adjustment" English translation, "directional aerial antenna" English translation, "directional amplitude modulation" English translation, "directional angel" English translation, "directional angle" English translation, "directional angles" English translation, "directional ante" English translation