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(shí)用新型即可達(dá)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(jìn)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(jì)數(shù)，可行總數(shù)或定量計(jì)數(shù)，配置踢板記號(hào)識(shí)別裝置，后收取輸送機(jī)，可隨需求調(diào)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(shè)備的接口，自動(dòng)設(shè)置在預(yù)設(shè)的水平音量，當(dāng)該設(shè)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.
FORBES: Google's Random Security