Servovalve
[电] 伺服阀
🗣️ 情景例句
They had no way to communicate directly with Kurt.
他们无法和库尔特直接联系。
One good turn deserves another.
以德报德。
Very excited, the party dug a hole two feel deep.
队员们异常激动，就地挖了一个两英尺深的坑，