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検索結果- 英語 - 多言語

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distress signal

名詞

An emergency signal sent by radio (or other means) from a ship or aircraft in distress or danger. / An indication of distress.

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関連語

plural

distress signals

名詞
活用形 複数形

plural of distress signal

原形: distress signal
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ball signal

名詞
歴史的

(historical) A kind of mechanical signal used on early American railroads, consisting of wooden balls, painted various colors, that were hoisted up and down a pole using a rope and pulley.

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関連語

plural

ball signals

名詞
活用形 複数形

plural of ball signal

原形: ball signal
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danger signal

名詞
未分類 比喩的用法

(rail transport) A signal set at danger and showing a red light or other stop indication, which a train driver must not pass until it changes or until manually cleared past the signal by a dispatcher.

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関連語

plural

danger signals

名詞
活用形 複数形

plural of danger signal

原形: danger signal
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radio signals

名詞
活用形 複数形

plural of radio signal

原形: radio signal
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radio signal

名詞

a signal, which can vary in strength due to various factors, transmitted and received by radio by means of radio waves.

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関連語

plural

signal strengths

名詞
活用形 複数形

plural of signal strength

原形: signal strength
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signal strength

名詞

the (measured) strength of a radio signal as received by a radio or any other device receiving radio signals, such as a mobile phone.

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関連語

plural

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