The air passage of KZ - 28 vibroseis appeared icing phenomenon in winter operation.
KZ-28型可控震源的气路在冬季施工过程中常出现洁冰现象.
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To KZ - 28 vibrator, shift gears realized by the shift gears valve on the operator's panel.
28可控震源前后桥两个变速箱的换档是通过驾驶室面板上的换档控制阀来实现的.
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