directional 核心詞議：
adj. 指向的；方向的
directional 基本解釋
速記方法知識擴展
中文詞源
中文詞源：
directional
精選例句
1、 Unless he was equipped with a directional microphone,he was out of earshot.
除非給他配備一個定向揚聲器，否則誰也聽不見他。
常見考點例句：
- This led to breakthroughs in 3d seismology and directional drilling .
- 這就導致了在3d地震學和定向鉆井上的突破。
- The patrol quickly reversed direction-and ran smack into a directional explosive device .
- 巡邏隊迅速折回---恰巧一股煙飛奔到安放定向爆炸裝置的區域。
- A technique called " directional drilling " has transformed the energy business .
- 一項名為“定向鉆井”的技術改變了能源業。
- Yet accusations were widespread that the trades were more likely directional bets that went wrong .
- 一種廣泛認可的指控指出，這場貿易更像是誤入歧途，變成了一場定向交易。
- Directional antennae , unlike the omnidirectional sort , transmit on a narrow beam .
- 這種定向天線并不像那些全方位傳輸的類型，它只有一個很細微的電子波束。