单词	绳索轮
释义	绳索轮 rope sheave
随便看	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 down-hole drill rig downhole dynadrill downhole dynagraph down hole dynamic compaction