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灾害预警
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灾害预警
Encyclopedia
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disaster warning
灾害预警
灾害发生前的应急网络的建立和灾害信息的发布。
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elementary Abelian group
elementary algebra
elementary alternating expression
Elementary and Secondary Education Act (U.S.A.)
elementary arc
elementary arithmetic
Elementary Astronomical Instrument
elementary automaton
elementary axiom system
elementary beam
elementary behavioral science
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elementary catastrophes
elementary cell
elementary cellular automaton
elementary chain
elementary characteristic
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elementary cluster graph
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elementary column operation
elementary column transformation
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