headwork的精選

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用“headwork”造句大全，headwork造句

用“headwork”造句大全，headwork造句

2018-09-24
TheKashiRivercanalheadworkwasbuiltonthebasisoftheLingongcanal.ThispaperdiscussesexistentproblemofheadworkatYuelaiIrrigationAreainHuachuanCountyandadoptablemeasures.Havingbeeninservicefor123years,theLi...