Taking the superfinishing of thin-wall hole machining as an example, the design and application of combined carbide core drill and reamer are introduced.
以本厂簿壁孔精加工为例，介绍了硬质合金扩铰复合刀具的设计、结构参数、使用情况及应用效果。
Drill core
英语例句库
原声例句
《科学》杂志（双语精选）
In Mexico, researchers have drilled rock cores from the Chicxulub crater.
在墨西哥，研究人员从希克苏鲁伯陨石坑钻出了岩心。
PBS趣味科普
Much easier than drilling a deep ice core which is 3,000 meters and costs 50 million dollars.
比钻探 3000 米深、成本 5000 万美元的冰芯容易得多。
环境与科学
Fridtijov Riis is a geologist who has long been searching in the drill core archive for the optimum sediment into which the first industrial carbon dioxide will be injected.
Fridtijov Riis 是一位地质学家，他长期以来一直在钻探岩心档案中寻找可以注入第一批工业二氧化碳的最佳沉积物。
PBS访谈环境系列
Last season, they went much deeper, drilling out this long ice core a few miles away. It is nature's ancient history book for this glacier.
上个季节，他们走得更深，在几英里外钻出了这个长长的冰芯。这是自然界关于这条冰川的古老历史书。
英语百科
Core drill
（重定向自Drill core）
A core drill is a drill specifically designed to remove a cylinder of material, much like a hole saw. The material left inside the drill bit is referred to as the core.
Core drills used in metal are called annular cutters. Core drills used for concrete are generally called Diamond Core Drills and are water cooled. For drilling masonry, carbide core drills can be used.
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