直径分段减小的套管柱 tapered casing string
小直径油管柱 macaroni string; macaroni tubing string
减小直径的 swedged
小直径油管 small diameter coiled tubing
小直径油管修井机 macaroni rig
高度减小的油柱 thinning oil leg
带切线直管段的三倍直径弯头 three-diameter ells with tangents
管柱直径 column diameter
林分直径分布规律 regularity of diameter structure of stands
小直径管 narrow tube; macaroni; small-diameter tube; small diameter tube
小直径管道 small diameter pipeline; small diameter pipe; Pipes with small diameters
小直径管供热系统 small bore heating system
小直径管坯 Small-sized billet for tube-making
油管直径 tubing diameter
小径油管 macaroni
无底柱小分段崩落采矿法 non-sill pillar little segment caving method
多油管柱的 multiple tubing string
(建)(使柱子等)的直径渐减 diminish; Diminished
4毫米直径的砂子 granule 2