In 1987, a team from the National Geographic Society drilled a hole through one of the limestone blocks sealing the chamber from above, and inserted a video camera.
1987年，国家地理协会的一组工作人员来在地下室封口的一块石灰石上钻孔，安装了一个录像机。
It is the structure characteristics of a solid substrate connection closed sealing hole mesh structure.
它的结构特点是一种固态基质联接的闭封口孔网状结构。
First of all the most important point: if the gas pipeline inner fire, immediately closed all into the hole, radiation tube and sealing pipe, and in general to pipe of steam to extinguish fire.
首先最重要的一点：如果煤气管道内着火，应立即封闭所有入孔、放散管、采封管，并向管道内通大量蒸汽灭火。
NOTE: At no time should hole be made in top of control panel, unless proper sealing devices are utilized.
注意：除非采用适当的密封设施，否则绝对不要在控制面板上钻孔。
Methods We changed straight pinhead to three-hole pinhead of filling & sealing machine in the work of filling liquid medicine.
方法将灌封机上的直筒药液灌注针头，改为“三孔”针头。
Creative use "thread" type glass sealing hole instead of existing "straight pillar" and "steps" type glass sealing hole, the product compression resistance and leakage performance increase 1 times.
创造性的采用“螺纹型”玻璃封接孔代替现有的“直柱型”和“台阶型”玻璃封接孔，产品耐压和耐泄漏性能相应提高1倍。
It describes the improvement scheme, and emphatically introduces the selections of open hole sealing equipment. Therefore it has a certain reference value.
简述了整改方案，重点介绍了开孔封堵设备的选用，具有一定的借鉴作用。
Stearic acid sealing the hole is better than any other methods of sealing the hole I.
因此，封孔处理是提高涂层防腐蚀性能的重要途径。
Stearic acid sealing the hole is better than any other methods of sealing the hole I.
封孔处理是提高涂层防腐蚀性能的重要途径。
This paper analyses theoretically and technologically, the reason of barrel tooth holders sealing off , of produced gas hole and cold crack.
从理论和工艺上分析滚筒齿座开焊的原因、气孔的产生和怎样减少气孔生成、冷裂现象生成及其予防。
Better reverse washing of the fracturing string and reliable sealing property offer a set of effective completion techniques for slant hole well production.
斜直井压裂管柱良好的反洗井和可靠的密封性能为斜直井开采提供了一套有效的完井技术。
According to geological condition of this mined-out area, a three hole-ins well has designed to carry out surface grouting and fire-area sealing.
根据该采空区地质条件，设计了三开井身结构，对采空区进行地面注浆及封堵处理。
The hole sealing agent has the advantages of simple construction, low difficulty to master, good sealing effect, safe use and low cost, etc.
本发明具有施工简单、易于掌握、封堵效果好、使用安全等优点，且成本低廉。
The paper also presents measures for preventing drilling hole curve, drilling technique in broken zone and fissure zone and technique of sealing hole and pluging loophole.
预防锚孔弯曲的措施；破碎带、裂缝带的钻进技术及封孔固壁堵漏技术。
This paper analyses theoretically and technologically, the reason of barrel tooth holders sealing off, of produced gas hole and cold crack. Especially, the writer has fourd the way to avoid them.
从理论和工艺上分析滚筒齿座开焊的原因、气孔的产生和怎样减少气孔生成、冷裂现象生成及其予防。
A new type shale inhibiter, KLG and sealing agent are used to seal fragile formation so that we can enhance safety density and solve the problem of hole collapse.
用新型防塌剂和KLG以及封堵材料复配使用，对破碎地层进行了有效封堵；
Sealing property of rubber directly restrict its usability. Rubber is a type of super elastic material. Its mechanics behavior is complication under multi-strain in down hole.
封隔器胶筒的密封性能直接制约其使用性能，且胶筒属于超弹性材料，在井下多种载荷作用下，其力学行为复杂。
Put the center of the sealing seat and the hole in the wall in a line and according to Figure 3 select method a orb to support the rear of soot-blower.
将吹灰器平置，密封支座中心对准炉墙开孔，根据图三的吊装示意图，选择方法a或方法b支承吹灰器尾部。
The lower part of the tank is a side tapered structure, and the top wall of the tank is provided with a repair hole with a sealing cover.
所述罐体下部为侧锥体结构，在罐体顶壁上设置有带有密封盖的维修口。
The technologies of hole stability and sealing by pressurization, cementing and reservoir protection were formed.
形成了井壁稳定与承压堵漏技术、固井技术和油气层保护技术。
It is characterized by that it is formed from 5 layers of plastic pipe, adhesive layer, steel pipe, alloy layer and hole-sealing film in turn fron inside to outside.
其特征在于该合金钢塑复合管由5层组成，从里到外依次是塑料管、粘结剂层、钢圆管、合金层、封孔膜。
Make the dough into small ones about 0.3-0.4 oz (10 g) each. Knead it like a ball with hands first and then make a hole in the middle of the ball. Put the sesame ball into it and then sealing it up.
将面团分成10克左右的小团，用手搓成球形，再在中间刺出一个蜗形，再把之前做好的芝麻馅填充进去。
Make the dough into small ones about 0.3-0.4 oz (10 g) each. Knead it like a ball with hands first and then make a hole in the middle of the ball. Put the sesame ball into it and then sealing it up.
将面团分成10克左右的小团，用手搓成球形，再在中间刺出一个蜗形，再把之前做好的芝麻馅填充进去。
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