| 单词 | directional |
| 释义 | directionalWord family noundirectiondirectionalitydirectivitydirectnessdirectordirectoratedirectorshipdirectorydirectrixdirect accessdirect actiondirect currentdirect debitdirect maildirect marketingdirect methoddirect objectdirector-generaldirector's chairdirector's cutdirectory enquiriesdirect speechdirect taxadjectivedirectionaldirectionlessdirectivedirectorialdirectadverbdirectly Communications di·rec·tion·al /dəˈrekʃənəl, daɪ-/ adjectiveadj technical 1. DIRECTIONrelating to the direction in which something is pointing or moving 方向的 2. TCa directional piece of equipment receives or gives out radio signals from some directions more strongly than others 定向的〔定向仪器接收或发出的无线电信号在某些方向上比其他方向强〕 Examples from the Corpus directional• a directional antenna• So, says Daedalus. imagine a Cexspex lens exposed to a bright directional beam of light.• It was several preceptors phasing out together, Posi later explained, that threw directional control and some other functions out of kilter.• Hooking up a powered antenna by Terk, which amplifies incoming signals and allows greater directional fine-tuning, produced no appreciable improvement.• directional signs• Note that both the l.e.d. and phototransistor are very directional - the tops are the sensitive surfaces. |
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