a vertical pipe in a building

fcc performance of chv 1, lv 23 and an imported catalyst was tested using xtl 5 riser pipe pilot plant.

利用xtl-5型提升管中试装置，对抗钒催化裂化催化剂chv-1、lv-23及进口剂的裂化性能进行了评价。

during the process of weizhou12-1b oilfield we ll drilling, downhole instance is complexity, and drilling time is longer, so drilling riser pipe has to have a good depth stability.

涠洲1 2-1b油田在鉆井过程中井下情况比较复杂，鉆井作业施工时间长，这对鉆井隔水导管的稳定性提出了更高的要求。

rear admiral mary landry today directed bp to launch a new procedure whereby the riser pipe will be cut and a containment structure fitted over the leak.

海军少将玛丽·兰德里命令bp公司采取新方法以切断立管和帮助控制设施装在泄露的部位。

the intensification of combustion process is first discussed. then, the structure, test and application of low-pulsating riser pipe burner are described.

探讨燃烧过程的强化和低脉沖立管式燃烧器的结构、试验及应用。

a telescoping joint at the surface in floating offshore operations that permits vessel heave (vertical motion) while maintaining a riser pipe to the seafloor.

浮动海洋鉆井作业时位于水面的伸缩节，它允许鉆井船升降（垂直运动）而保持导管接触海底。

points out the importance of correct calculation of the acting forces on fixed supports at the riser pipe of a water system in high rise building air conditioning.

指出了高层建筑中空调水系统立管固定支座受力计算的重要性，介绍了计算方法，给出了计算实例，并为保证波纹补偿器的使用寿命，提出了合理的选择方法。