机台（drilling crew）是岩心钻探以钻机为生产单位的劳动组织，又称钻机作业班。
开机前须检查机台背面冷凝器是否干净，以免散热不良。
Before starting the machine back check condenser is clean, to avoid bad heat.
每周需用干燥的压缩空气或铜刷清理机台背部冷凝器一次以上。
A week with dry compressed air or a copper brush cleaning machine back condenser more than once.
当机台上方的热通量越大，其产生的涡漩区范围和回流速度越大。
If the heat flux is large, the vortex region and velocity are large on top of the machine platform.
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