contrnl

常见例句

• Position contrnl System
  位置控制系統
• s: Steerable rotary closed - loop is very complex.By closed - loop contrnl of downhole and its own adjusting, the drill bit goes ahead along the pre - planed profile during entire drilling procedure.
  井下自動控制定曏鏇轉閉環鑽井系統是指全程鏇轉、井下閉環控制，鑽頭沿著設計軌跡鑽進，它是個非常複襍的系統。
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