omnidirectional
omnidirectional — 形容詞
- omnidirectionalpositive
- more omnidirectionalcomparative
- most omnidirectionalsuperlative
1. A piece of equipment that is omnidirectional can work equally well in every dire
全向的
可從所有方向接收或發送訊號的
A piece of equipment that is omnidirectional can work equally well in every direction around it — for example, an antenna, microphone, or sensor that picks up or sends signals from all sides without needing to be pointed in a particular direction.
A new security camera with an omnidirectional lens records activity on all sides at once.
這款新型安全攝影機採用全向鏡頭，能同時記錄四面八方的動態。
collocation: omnidirectional lens
Jiwoo put an omnidirectional antenna on the roof for better Wi‑Fi everywhere.
Jiwoo 在屋頂裝了一根全向天線，讓每個房間的 Wi‑Fi 訊號都更好。
collocation: omnidirectional antenna
The conference room is fitted with an omnidirectional microphone that picks up each speaker clearly.
會議室裝了全向麥克風，能清楚收錄每位發言者的聲音。
Sensors around the museum are omnidirectional and can detect movement from any angle.
博物館周圍的感測器是全向的，可從任何角度偵測到動靜。
Liang fitted an omnidirectional beacon to the drone so the station never loses the signal.
Liang 在無人機上裝了全向發射器，控制站因此不會遺失訊號。
- multidirectional
Broader; can describe movement, influence, or communication flowing in multiple directions, not necessarily all at once.
- all-round
Informal British term meaning versatile or comprehensive; used for people or tools, not specifically for signal equipment.
- directional
Must be aimed at or face a particular source to work properly (e.g., a directional microphone).
- unidirectional
Operates in or from only one direction.
用法筆記
Typically used for technical equipment such as antennas, microphones, sensors, and security cameras. The word is rarely applied to people or abstract ideas and is most common in engineering, electronics, and telecommunications contexts.