钻杆

DP drillpipe

钻杆

HWDP height weight drillpipe 加重钻杆 | DP drillpipe 钻杆 | DC drill collar 钻铤

drill pipe elevator

钻杆吊卡

drill pipe cutter 钻杆割刀 | drill pipe elevator 钻杆吊卡 | drill pipe protector 钻管保护器

drill pipe winding up

钻杆扭曲

drill pipe tension 钻杆拉力 | drill pipe winding up 钻杆扭曲 | drill pipe wobbling 钻杆摆动

drill rod coupling

钻杆接箍

drill rod 钻杆 | drill rod coupling 钻杆接箍 | drill rod subs 钻杆接头

internal drill pipe cutter

钻杆内割刀

钻杆接头螺纹||tool joint thread | 钻杆内割刀||internal drill pipe cutter | 钻杆排放系统||pipe pick-up and lay-down system

external drill pipe cutter

钻杆外割刀

钻杆识别槽||identification groove of drill pipe | 钻杆外割刀||external drill pipe cutter | 钻杆校直装置||drill pipe straightener

jar for drill stem test

钻杆测试震击器

钻杆测试筛管||screen casing for drill stem test | 钻杆测试震击器||jar for drill stem test | 钻杆吊卡||drill pipe elevator

drill pipe box and pin

钻杆公母接头

drill pipe bore 钻杆内孔 | drill pipe box and pin 钻杆公母接头 | drill pipe clamp 钻杆夹持器

Tool joint pin length

外螺纹钻杆接头长度

Tool joint ID 钻杆接头内径 | Tool joint pin length 外螺纹钻杆接头长度 | Tapered shoulder tool joints 锥形钻杆接头

drill pipe coupling

钻杆接箍

drill pipe clamp 钻杆夹持器 | drill pipe coupling 钻杆接箍 | drill pipe electric log 钻杆电测井

photoperiodic response：光周期响应

photoperiodic induction 光周期诱导 | photoperiodic response 光周期响应 | photoperiodism 光期性

Multi-Variate Statistical Analysis：多元统计剖析

311. 多项距阵 Multi-Nominal Matrix | 312. 多元统计剖析 Multi-Variate Statistical Analysis | 313. 发电厂 Power Plant