| 释义 |
♯ Mechanical engineering
※ • ♯ Science
L • ♯ Technology L • ♯ Engineering
L • ♯ Machines and machine parts
Ⱶ ☀ ♯ Mechanical engineering (62) Thesaurus+: → SEE ↑Mechanical engineering
L • ♯ Mining and quarrying (49) Thesaurus+: → SEE ↑Mining and quarrying
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