井底部小直径井眼  rat hole

小直径井下重力仪  slimhole BHGM

小直径石英压力计  small diameter quartz pressure gauge

岩石岩石  BATU; KARI

多头小直径  multi-head and diminutive diameter

多头小直径深层搅拌防渗墙施工工法  construction method of multi-headed and small-radi; Construction Method of Multi-headed and Small-radius Deep Stir

多头小直径深层搅拌桩  multi-drill small-diameter deep-layer mixing pile

高效小直径深孔钻削系统  high efficiency drilling system for small and deep hole

减小直径的  swedged

少齿数小直径圆柱料齿轮  cylindrical helical gear with minority number of t

缩小井径钻进  mouse ahead

统一标准小直径螺纹  unified miniature screw thread

统一标准小直径螺纹规  unified miniature screw thread gauge

外通管路最小直径  customer bleed orifice diameter

小井径  slim hole

小岩石  rocklet

小直径  minor diameter; small diameter; Smaller diameter; slim-hole; Small - diameter

小直径棒料  small diameter bar

小直径薄壁不锈钢焊管  Small－ sized light－ wall stainless steel weld tube