time interval indicator
常見例句
- Portable electric timer functions as elapsed-time indicator, interval timer and electrical apparatus on-off timer.
便攜式電子計(jì)時(shí)器裝有已過時(shí)間指示器，間隔計(jì)時(shí)器和電子開關(guān)計(jì)時(shí)器。
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