open-working
/əʊp(ə)nˈwəːkɪŋ/noun
Mining. Mining that employs openworks; = openwork.
Origin
Mid 19th century (in an earlier sense). From open + working, after openwork.
| 单词 | open-working |
| 释义 | open-working/əʊp(ə)nˈwəːkɪŋ/noun Mining. Mining that employs openworks; = openwork. Origin |
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