pivot是什么意思

网络释义

用法例句

The reliability analysis and the improving measurement for drilling rig;

石油钻机可靠性分析及改进措施

Field bus and application in electric system of drilling rig;

现场总线及其在石油钻机电气系统中的应用

Research on the H-point concerning the driller of the drilling rig

石油钻机司钻的H点研究

End upsetting process for oil drill pipe and numerical simulation;

石油钻杆管端镦锻工艺及数值模拟

Research of Oil Drill Pipe Crack-detection System Based on Computer Vision;

基于计算机视觉的石油钻杆裂纹检测系统

Parameters that influence the end upsetting process and working procedure were studied in this paper, and the thermal-mechanical coupled rigid-plastic FEM was put forward to simulate the process of end upsetting for oil drill pipe.

因此优化石油钻杆管端加厚工艺,改善钻杆内加厚过渡带的几何形状,有利于减轻应力集中,提高钻杆的使用寿命。

A study on oil drill pipe end upsetting process;

石油钻杆管端加厚工艺研究

Research on control technology of auto-cladding welding on drill pipe;

石油钻杆耐磨带自动堆焊设备

The failure of drill pipes mainly occurs in weld seams or inner upset transitional sections according to the experience accumulated by oil fields.

根据石油钻杆摩擦焊接及焊缝处理技术发展现状,结合API标准对石油钻杆焊缝力学性能的基本要求,对照中国石油天然气的行业标准,对宝钢生产的石油钻杆进行了部分焊缝力学性能统计,分析了宝钢石油钻杆的质量保证能力。

Design and Application of Multifunctional Drill Stems Pneumatic Clip for Oil Drilling Rig

石油钻机多功能钻杆气动卡瓦的设计及应用

The Safety Protection Function of Disc Brake on Oil Drilling Rig

石油钻机用盘式刹车的安全保护功能

Design of ZJ50/3150DB Drilling Rig Low Temperature Region

ZJ50/3150DB型低温石油钻机设计

Remote safety monitoring system of oil drilling rig

基于GPRS的石油钻机远程安全监控系统

Investigation of the Wholly Hydraulic Top-driven Petroleum Rig Model's Digital Mockup;

全液压顶驱石油钻机模型数字样机研究

Simulated Investigation of Movement Controlling of Wellhead Mechanized Devices of Petroleum Rigs;

石油钻机井口机械化装置的运动控制模拟研究

Experimental Study in Screening and Matching of Disc brake Pair Materials of Drilling Rig

石油钻机盘式刹车副材料选配的实验研究

Performance Analyses and Researches on Drawworks of Electrically-Driven Drilling Rig;

石油钻机电动绞车特性分析及控制研究

Research on Vector Drive Technology in the Oil Rig Rotary Table Control System;

石油钻机转盘控制系统中矢量调速技术的研究

Research on Elastic and Elastic-plastic Stability of the Oil Derrik;

石油钻机井架弹性及弹塑性的稳定性分析研究

Calculation of Static Stress and Stability of Model JJ225/43-K Mast;

JJ225/43-K石油钻机井架强度及稳定性计算

Research on Harmonic Suppression and Reactive Power Compension of Oil Drilling Rig Electrict Drive System

石油钻机电驱动系统谐波抑制和无功补偿研究

The harmonic analysis and calculation of the drilling rig's VFD electric drive system

石油钻机VFD电驱动系统的谐波分析和计算

Discussion of Virtual Manufacturing in Oil Rig Design

虚拟制造在石油钻机开发中的应用探讨

Preliminary Envisage on the Application of Super Capacitor on Oil Rig

超级电容在石油钻机上的应用初步设想

mixed oil drilling rig

复合式石油钻井钻机

Oil whooshed up when the drill hit the well.

当钻孔机钻井时，石油喷了出来。

The first choice is to dig our heads and oil drills deeper into the ground.

第1种选择就是用石油钻孔机钻至更深的地底。