Application of large diameter oil tube and weighting rod in heavy oil production;
增大油管直径和加重杆技术──在稠油生产中的应用
7 mm heavy weight drill pipe,macro and micro analyses of the fracture surface were carried out.
7 mm加重钻杆外螺纹接头的断裂原因,对断口进行了宏观和微观分析,对材料进行了化学成分分析、力学性能试验和金相分析,并进行了有限元分析等。
Stress Analysis of Sucker Rod and Application of Heavy-weight Rod in Directional Well
定向井抽油杆柱应力分析及加重杆的应用
The bit was attached to a heavy length of steel suspended by a wire rope.
钻头系在由钢丝绳悬挂起来的加重杆上。
Study on the New Technology of Using Twin-Screw Extruder to Produce Textured Fish;
双螺杆挤压重组鱼肉加工新技术研究
Cause Analyses of Pin Joint Fracture of 139.7 mm Heavy Weight Drill Pipe
139.7mm加重钻杆外螺纹接头断裂原因分析
It’s very important to choose the suitable cutting tool and arbor for machining centers in high speed machining (HSM).
在进行高速加工时,加工中心的刀具和刀杆的选用十分重要。
The Study on Bifidobacterium CMS-H004 Strain Aggravated the Damage of Ulcerative Colitis and Preparation of Its Antibody;
双歧杆菌CMS-H004株加重溃疡性结肠炎损伤的研究及其抗体的制备
automatic line for weighting connecting rod
连杆称重去重自动线
Effect of Medium Additives on Extracellular Production of Recombinant α-Cyclodextrin Glycosyltransferase
培养基添加剂对重组大肠杆菌胞外生产重组α-环糊精葡萄糖基转移酶的影响
Stem – machined stem has a backseat design.
阀杆-经过机加工的阀杆具有后座结构。
Stem– precision machined stem has a backseat design.
(11) 阀杆-精加工阀杆配置后座结构。
Processing Method of Screw for Conical Twin-screw Extruder
锥形双螺杆削挤出机螺杆的加工方法
REAR BUMPER REINFORCEMENT
将后保险杆加强组件
hard banding of tool joint
钻杆接头表面加硬圈
hard facing of tool joint
钻杆接头表面加硬层
boring bar for metalworking machine tools
金属加工工具机镗杆
double-column screw type supercharge device
双柱丝杆式加压装置
light mast crane
轻型桅杆式转臂起重机
new mechanical bumper jack
新式机力保险杆起重器