drawbore

例句：

1. 1. The drillborewas used to extract oil from the deepseabed.
   抽油机被用来从深海床提取石油。
2. 2. The oil company invested heavilyin developing new drillbores.
   这家石油公司大量投资于开发新的抽油机。
3. 3.The engineers were tasked with designinga more efficient drillbore system.
   工程师们被指派负责设计一个更高效的抽油机系统。