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unset
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unset
Encyclopedia
工学
测试施工工艺
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解封
测试作业结束后,上提管柱,打开旁通,使封隔器胶筒收缩的作业。
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防盗报警控制器
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unset
解除警戒
使入侵和紧急报警系统或其一部分处于不能通告报警状态的操作。又称撤防。
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rare earth element
rare-earth element
rare earth element geochemistry
rare earth extraction chromatography separation and purification
rare earth fluoride
rare earth fluoride calcium thermal reduction
rare earth fuzzy extraction
rare earth hard magnetic materials
rare earth helate
rare earth hydroxide
rare earth intermediate alloy-vacuum distillation
rare earth iodide
rare earth ion exchange chromatography separation
rare earth ion exchange separation
rare-earth-iron garnet
rare earth laser material
rare earth laser materials
rare-earth laser materials
rare earth liquid-membrane extraction separation and enrichment
rare earth magnetic materials
rare earth metal
rare-earth metal
rare-earth metal catalyst
rare earth metal ore deposit
rare earth metal refining
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