pinger
n. 声脉冲发送器, 铃声定时器
发音
词形变化
释义与例句
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1.
A device that emits a short, high-pitched sound burst, such as in sonar or other echo location systems.
We couldn't take the boat into the shallows near the reef because our sonar pinger was broken.
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2.
A device that periodically emits a signal that can be monitored to permit movement tracking.
The scientist attached a pinger to the carapace of the sea turtle to track its migration.
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3.
A computer program that sends a ping message over a network.
Some people like fancy pingers with extra features, but I always use the default ping application.
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4.
A user of a ping program; one who pings.
Every time we replace the main page, we get flooded with pingers making sure our web site is still there.
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5.
An illicit drug, especially ecstasy, taken for recreational purposes.
俚语That was a great party. Everyone took a pinger or two.
词汇关系
整体词 3
词源
From ping + -er.
来源：wiktionary