石油类英语词汇

back-off joint 倒扣短节

back-off operation 倒扣作业

back-off procedure 倒开步骤

back-off 倒开

back-out 旋松;退火;取消;拧出

back-packer 支撑式封隔器

back-pressure regulator 回压调节器

back-pressure valve 回压阀

back-purge system 反冲洗系统

back-ridge 洋脊背侧

back-roll 反绕

back-scattered ground roll 反向散射地滚波

back-scattered noise 反向散射噪声

back-setting effect 逆流效应

back-side-crank pumping unit 单拐多连杆抽油装备

back-sizing 单面上浆

back-sliding nappe 后滑推覆体

back-slope 后坡

back-spacing 返回

back-step welding 逐步退焊

back-to-back counter 加倍计数器

back-to-back credit export first 输出方先开的对开 信用证

back-to-back credit import first 输入方先开的对开信用证

back-to-back 对头拼接

back-up attachment 背钳附件

back-up control manifold 辅助控制管汇

back-up corner 后备位置

back-up curve 辅助曲线

back-up galvanometer 辅助检流计

back-up post 支柱

back-up safety 备用安全装置

back-up surveillance 辅助监督

back-up tong 背钳

back-up wrench 背钳

back-ups 背钳

backacter 反铲挖土机

backarc 后弧

backbarrier complex 障壁后复合体

backbarrier deposit 障壁后沉积

backbarrier facies 障壁后相

backbarrier 障壁后

backbeach 滨后滩

backboard 底板

backbone chain 主链

backbone pipeline 干线

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