operational relay的用法和樣例：
例句
- I need to buy car relay ,please and contact us.
我們需要求購汽車繼電器，請聯繫我們。 - Only one relay is closed at any time.
在某一時間，僅有一個繼電器是閉合的。
operational relay的相關資料：
臨近單詞
operational use
operational
operational risk management
operational characteristics
operational standardization
Operational Needs Statement
operational system analysis
operational guiding thought
operational decision scheme
Operational Control Command
Operational Digital Network
operational reference model
