单线制 [电] single wire system ; One wire system ; earthed system
单相三线制 phase three wire system ; single-phase three wire system
单相三线制变压器 single-phase three wire transformer
直流单线制 DC single wire system
单线制接口 OWI ; EasySet
单一线制n元/炭 Single Wire System N/C
单一线程控制 single-threaded control
单线轧制 one-strand roller ; one-strand rolling
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