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outer-shell

[ˌaʊtə'ʃεl, ˌaʊt̬ər-]
jewl. 外层的; 外壳的
outer shell
nucl.phys. 外壳层
space 外壳
tech. 外套管
outer-shell
: 6 phrases in 5 subjects
Electronics2 Law1 Nuclear physics1
Energy industry1 Nautical1