Thus, stable hole, smooth drilling and tripping operations and zero outage time have been obtained in the construction period.
使该井在施工期间，井壁稳定、起下钻井眼畅通，全井事故、复杂时效均为零。
The fatigue behaviours of Superalloy GH901 under major combined with minor cycle have been systematically studied at room temperature using smooth specimen and sheet with center hole.
采用光滑圆棒和中心孔板片试样，对GH901合金室温高低周复合疲劳进行了系统的研究。
By improving parameters of the blasting hole, the charge, charging structure and the priming order etc, the smooth blasting is formed.
通过改进爆破的孔网参数、装药量与装药结构、起爆顺序等，从而形成了光面爆破。
The utility model has the advantages of high speed of hole providing, smooth cutting, small vibration, high durability, etc.
本实用新型具有开孔速度快、切割平稳、振动小、耐用等特点。
At present, in the design and construction of smooth blasting, considering few influence that main blast hole 'first blast damage to rock of smooth blasting parameters.
目前，在光面爆破设计与施工中，均未考虑主爆孔先爆造成光爆层岩石损伤对光面爆破参数的影响。
The stonework blasting of this contract USES construction program that combine blasting deep hole and smooth blasting.
本合同段石方爆破采用深孔控制爆破和光面爆破相结合的施工方案。
The design and implementation of shallow hole smooth blasting and springing blasting in complicated circumstances are introduced on the basis of field test.
结合工程实践，介绍在复杂条件下，进行浅眼光面爆破与药壶控制爆破相接合的设计与施工经验。
It had been carved out about 20,000 years earlier by a retreating glacier that deposited thousands of beach-smooth cobblestones around the hole, "like a hen laying eggs," Mr. Hussey said.
这个坑是在大约2万年前由一座消退的冰川留下的，周围沉积着数以千计的光滑鹅卵石，看起来“就像一只母鸡在下蛋，”赫西说。
It had been carved out about 20,000 years earlier by a retreating glacier that deposited thousands of beach-smooth cobblestones around the hole, "like a hen laying eggs," Mr. Hussey said.
这个坑是在大约2万年前由一座消退的冰川留下的，周围沉积着数以千计的光滑鹅卵石，看起来“就像一只母鸡在下蛋，”赫西说。
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