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bǎo zhèng shū
为了保证做到某件事情而写成的书面材料。在一定期限内，对于行为、财力或货物品质表示负责保证的单据。也称为「保单」。
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energy balance in flow
energy balance method
energy-balance method
energy balance model
energy balance ratio
energy balance routing
energy-balances
energy balance sheet
energy balance signal
energy balance system
energy balance test
energy balancing
energy balancing method
Energy balanee
energy ball
energy band
energy-band
energy band curve
energy band density
energy band diagram
energy-band engineering
energy band fold
energy bandgap
energy band gap
energy band model
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更新时间：2026/9/29 0:04:55