built-in battery

基本解釋

MFJ-299 has a built-in battery check circuit.
MFJ-299 有一個(gè)內(nèi)建的電池檢查線路。
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Runs on a built-in battery - an electrical impulse within the heart initiates each contraction.
由“內(nèi)置電池”供能 —— 心髒內(nèi)部的電脈沖信號(hào)能激活每一次肌肉收縮。
It featured a touch-sensitive screen, with a built-in battery. Once tilted on its built-in stand, it could be used as a desktop computer with the attachable Folio keyboard.
Macintosh Folio帶有觸摸屏及內(nèi)置電池，儅使用它的附屬支架立置時(shí)，可以連上Folio外接鍵磐儅作臺(tái)式電腦使用。

With a built-in battery that lasts for approximately eight hours you can enjoy your music anywhere.
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There's also the problem of the iPhone's built-in battery, which can't be swapped without a trip to the factory.
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Being waterproof with a built-in battery allows explorers of all kinds to focus their attention on what's most important: the adventure.
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