A matrix is useful when connections must be made between several signal sources and a multipin device, such as an integrated circuit or resistor network.

　
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  • 當需要在幾個(gè)信號源和一個(gè)多連接端子的裝置（例如集成電路或電阻網(wǎng)絡(luò )）之間建立連接時(shí)，矩陣開(kāi)關(guān)就非常有用。
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