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explosion-proof tools
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explosion-proof tools
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explosion-proof tools
防爆工器具
用于易燃、易爆场所,与工作物相互摩擦、撞击不产生火花的工具。又称无火花工具。
随便看
periodicity of a function
periodicity of a sequence
periodicity relation
periodicity theorem
periodic law
periodic law of elements
periodic law of geographic zonation
periodic maintenance
periodic mapping
periodic Markov chain
periodic matrix
periodic module
periodic morphism
periodic motion
periodic nonlinear error
periodic nonsinusoidal current circuits
periodic nonstationary process
periodic operation test for steam turbine
periodic optimization
periodic orbit
periodic oscillation
periodic paralysis
periodic pattern
periodic permanent magnetic focusing
periodic perturbation
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