单词	Saneishi
释义	Saneishi 实石姓,日本
随便看	down-hole bi-directional flow valves downhole blasting and burning downhole blow-out preventer downhole burner downhole camera downhole casing corrosion prevention downhole casing damage downhole chamber downhole choke downhole coal mine Downhole Color TV Logging downhole complexity downhole condition downhole construction downhole control valve down-hole DC electrical method down hole deep compaction downhole derricks down hole deviation drilling downhole deviation drilling deep drilling down-hole dilution downhole drill down-hole drill Downhole drill hammers and bils down-hole drill, percussive drill