1) bottom outlet
底孔
1.
Research on silt carrying capacity of turbulent flow and sand sluicing at bottom outlet;
湍流挟沙能力与底孔冲沙研究
2.
Radial gate of bottom outlet and its operation for Wanjiazhai water control project;
万家寨水利枢纽泄洪底孔弧形闸门及其运行
3.
Stress test analysis and treatment of the bottom outlet for the Sanmenxia Hydroproject;
三门峡水利枢纽底孔应力试验分析
2) bottom hole
底孔
1.
There are 23 permanent flood discharge deep holes,22 surface holes and 22 temporary diversion flood discharge bottom holes.
三峡大坝在运行期和施工导流期要求的泄洪能力分别达100 000m3/s和70 000m3/s,设有永久泄洪深孔23个、表孔22个,导流底孔22个。
3) Hole top and bottom hole
孔口孔底
4) bottom priming
孔底起爆
1.
Study and application on the technique of bottom priming in medium-length hole blasting in Paishanlou gold mine;
排山楼金矿中深孔爆破孔底起爆技术的研究及应用
2.
Combining with the actuality of Paishanlou gold mine,the issue analyzed the safeguard mechanism to realize the mining capacity of 1 800t/d in the following aspects,the selection of construction teams,block mining,midsection haulage,stoping method and bottom priming technique.
文中结合排山楼金矿的实际,分析了实现1 800 t/d生产能力存在的问题,并从施工队伍选择、分区开采、中段运输、采矿方法、孔底起爆技术等方面介绍了生产能力的实现,值得类似矿山借鉴。
3.
The blasting mechanisms of collar priming and bottom priming are analyzed, also the advantages and disadvantages of two priming methods are compared.
简述江西铜业公司银山铅锌矿井下采矿爆破概况及实际效果 ,指出其所用导爆索一次爆破方法存在的问题 ,分析孔口起爆法与孔底起爆法的爆破作用机理 ,并比较两种起爆法的优缺点 ,建议采用非电导爆管雷管分段微差 ,孔底起爆的爆破方案。
5) pre-piercing bottom hole
预冲底孔
补充资料：孔底动力机
见螺杆钻具、涡轮钻具、海洋柔杆电钻。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条