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真空空间
busin. empty space
met. evacuated space
oil vacuum space
真空〔无空气的〕空间
coal. empty space
真空空 间: 34 phrases in 14 subjects
Animal husbandry1
Aviation3
Earth sciences2
Electronics2
Explosives and Explosive Ordnance Disposal1
French1
General1
Metallurgy4
Nautical1
Plastics2
Project management1
Space7
Technology7
United States1