2) retrievable bridge plug
可取式桥塞
1.
In this paper, combining the locale conditions, a blocking technique of retrievable bridge plugs is represented and analyzed in detail about its configuration, basic elements, technical characteristics and applicability.
对可取式桥塞的结构组成、基本原理、技术特点及适用范围进行了详细的介绍 ,并结合现场使用情况进行了分析。
3) removable pipe bridge plug
可取式插管桥塞
4) retrievable bridge plug of cement squeeze
可取挤灰桥塞
5) retrievable fracture bridge-plug
可取压裂桥塞
6) retrievable bridge plug slip
可取桥塞卡瓦
1.
Structure optimization of retrievable bridge plug slip by the combination of BP network and genetic algorithm
BP网络结合遗传算法对可取桥塞卡瓦结构优化
补充资料:威尔士塞文桥
英国威尔士塞文桥,主跨988米,扁平钢箱梁,梁高3.0米,桥宽22.86米。箱梁两侧梁高的上三分点处各设有4.5米宽的鱼鳍形的伸臂人行道,吊杆在顺桥向的倾角为正30度,钢塔柱高121.92米,1960年建成。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。