【test_card】什么意思_英语test_card的翻译_音标_读音_用法_例句_在线翻译

abstract: A test card, also known as a test pattern, is a television test signal, typically broadcast at times when the transmitter is active but no program is being broadcast (often at startup and closedown). Used since the earliest TV broadcasts, test cards were originally physical cards at which a television camera was pointed, and such cards are still often used for calibration, alignment, and matching of cameras and camcorders.

以上来源于: WordNet

1.
N a complex pattern used to test the characteristics of a television transmission system (电视图像)测试卡

Each channel had a unique themed test card.

每个频道都有各自不同主题的测试卡。

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The optician asked him to point to a test card.

验光师指着视力表问他：“你能认出来吗？”

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The whole testing system is composed by PC, test card and small embedded system which need to be the test.

整个测试系统由上位机pc，测试卡，待测嵌入式对象组成。

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更多双语例句

The test card, marketed by Tetra Scene of Crime in Billericay, contains a chemical which reacts to Ketamine and GHB, which police say are the most commonly used drugs.

BBC: NEWS | UK | England | Essex | DIY test for spiked drinks
They would test the card by charging a small amount at a gas station.

FORBES: Sentencing Delayed For The Credit Card "Snake"
Buying a diamond ring soon after buying petrol results in an even higher risk score: thieves often test a card's validity with a small purchase before buying something much bigger.

ECONOMIST: Computing

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test card