... gap suitable for air extraction (安全壳)抽风间隙 gap surface 间隙面 gap test 间隙检验，间隙探伤，空隙检验 ...
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当垂直刀架下降时，由于摩擦力阻碍其下降，使丝杆的上螺旋面螺母的下螺旋面相接触，丝杆螺母的间隙在下面。
When the vertical turret decline, due to friction hinder its decline, the screw on helical screw nut under the physiognomy contact screw nut in the space below.
结果骶髂关节结核常为单侧发病，表现为关节面模糊，关节间隙增宽。
Results Sacroiliac joint tuberculosis often involved unilateral joint , manifested itself as blurred articular surface and widened joint space.
第16天，骨性关节面及其下骨质破坏区仍然存在，关节间隙与正常间隙比较显示增宽，周围软组织肿胀显著。
By day 16, bone erosions still existed, joint space wider than normal, and swelling of soft tissue was significant.
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