1.
operate on with a trephine.
用环钻对病人施行手术。
2.
To operate on with a trephine.
作手术用环钻对…进行手术
3.
The research on indoor simulation method of gas circulation drilling in a similar way
气体循环钻井室内相似模拟方法研究
4.
Water well construction using directional circulation drilling technology in sandy gravel aquifer
砂砾含水中正循环钻进水井施工初探
5.
Experimental and Drill Bit Flow Field Analyze of Run-through DTH Reverse Circulation Drilling Technique;
贯通式潜孔锤反循环钻进技术试验及钻头流场分析
6.
goldgold ear-ring and pendant with faceted ruby and fresh water
红宝珠钻金耳环及耳坠
7.
diamond studs in her ears
她耳朵上戴的钻石耳环.
8.
Paint me with diamond earrings,
“给我画上一对钻石耳环、
9.
Study of Environment-friendly Corrosion Inhibitor for Drill Tool in Saltwater Drilling Fluids;
盐水钻井液用钻具的环保型缓蚀剂的研究
10.
5.8 Circulate for one and a half hour and then pull the string out at 14:30.
循环一个半钟头，14:30起钻。
11.
blank-casing bit
套管底部装用的环状钻头坯
12.
an annular drilling bit to allow core samples to be taken.
用来获取采样的一种环形钻头。
13.
which we circulate down the drill pipe.
即让泥浆顺着钻杆向下循环的方法。
14.
Diamond-ring at end of 1991 total solar eclipse.
1991年日全食时,罕见的钻石环.
15.
Treatment Methods and Environment Impact Assessment of Abandoned Drilling Fluid
废钻井液对环境影响分析及处理方法
16.
Drilling pads and new roads break up habitat.
钻井台和新的道路会破坏生态环境。
17.
ESTABLISHMENT OF SHARING SYSTEM AND ENVIRONMENT OF DRILLING KNOWLEDGE;
石油钻井知识共享体系和环境的建立
18.
Application of CJF Series Strike Backcycling Engineering Driller
CJF系列冲击反循环工程钻机的应用