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铍2
释义
铍2(1)鈹pí(2)钢灰色、轻、坚硬、质脆而有毒的二价金属元素,具有高电导率且X射线对它有高的贯穿能力,以化合物形式存在,可以从它的化合物还原生产(如通过电解),主要用在合金中做硬化剂(如与铜),在X射线管中用作窗并且在核反应堆中用作慢化剂和反射层 [beryllium]――元素符号Be另见pī
随便看
vacuum multistage evaporator
vacuumometer
vacuum overhead
vacuum-packed
vacuum pan melting process (for caustic soda)
vacuum pan salt
vacuum partial condenser
vacuum phototube
vacuum pipeline
vacuum pipe-still
vacuum piping
vacuum-plate
vacuum plates
vacuum plating tape
vacuum pot
vacuum preconcentrator
vacuum pressure valves
vacuum pump
vacuum-pumping
vacuum pump oil
vacuum purge
vacuum range
vacuum receiver
vacuum rectifying apparatus
vacuum refining
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更新时间:2025/7/5 12:14:15