本机旋转运动采用变频控制，在生产中可根据实际需要在一定的范围内调节最佳速度。
The machine USES inverter controlled rotary movement in the production can be based on the actual need for some adjustment within the optimal speed.
战略边疆指的是一国影响力所能达到和实际控制的地理空间范围。
Strategic frontier refers to geographical spatial scope that one country influence with actual controlling.
工业现场实际运行的结果表明，控制系统可以在机组安全区范围内降低注水单耗，节能优化效果明显。
The application of the control system reveals that the unit consumption of water flooding can be reduced in a safety range and the effect of energy-saving optimization is appreciable.
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