preset device

基本解釋

In this way, the culture fluid output device can output preset amount of culture fluid stably each time and is convenient to be filled with culture fluid.
藉此，本實用新型即可達到每次都較為穩(wěn)定地輸出固定量的培養(yǎng)液，且較為方便進行培養(yǎng)液的盛裝工作。
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Photo-electric counter installed for total or preset counting and kicker device. Back delivery machine can adjust conveyor with the demand for the vertical and horizontal.
采用光電計數，可行總數或定量計數，配置踢板記號識別裝置，后收取輸送機，可隨需求調整為直式或橫式兩用，便于包裝。
Plugging a portable audio device into the aux-in jack automatically sets the volume at a preset level; when the device is unplugged, the volume resets to its previous level.
插入的輔助便攜式音頻設備的接口，自動設置在預設的水平音量，當該設備被拔掉，體積重置到先前的水平。

Traditional security does this with a separate device, usually a card or a dongle, that is preset at the home office.
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